The 10 wealthiest couples in the world

These 10 power couples are each worth tens of billions of dollars, making Beyonce and Jay-Z look middle class in comparison.

1. Bill and Melinda Gates

Net worth: $85.7 billion
Bill and Melinda Gates are the world's wealthiest couple according to a report out today from Wealth-X.

Bill Gates famously dropped out of Harvard and co-founded Microsoft(MSFT, Tech30) in 1975 with Paul Allen.
Bill and Melinda are known for their high-profile Bill and Melinda Gates Foundation, which supports initiatives in education, world health and population and has donated more than $28 billion to philanthropic causes.
2. Amancio Ortega Gaona and Flora Perez Marcote
Net worth: $70.7 billion
Spanish businessman Amancio Ortega Gaona became Europe's richest man after founding the successful global fashion chain Zara in 1975.
Zara is now part of a wider group of fashion labels under parent company,Inditex (IDEXY), along with brands Pull&Bear, Massimo Dutti and Bershka.
3. Warren Buffett and Astrid Menks
Net worth: $65 billion
Famed billionaire investor Warren Buffett married his second wife Astrid Menks in 2006, two years after the death of his first wife Susan Buffett.

Around the time of their nuptials, Buffett's daughter Susie Buffett reportedly told the New York Times that she was thankful they were together.

"She loves him and takes care of him. If Warren didn't have a cent, she'd be with him," she told the newspaper.
4. David and Julia Koch
Net worth: $47.5 billion
David Koch and his brother Charles Koch made their fortune with Koch Industries, a huge oil and gas conglomerate which is among the biggest private companies in North America. David and his wife Julia met on a blind date and married in 1996.
6. Wang Jianlin and Lin Ning
Net worth: $40.7 billion
Property mogul Wang Jianlin is one of China's richest men.

The self-made billionaire is chairman of Dalian Wanda, a real estate and entertainment conglomerate.

The company owns AMC Entertainment (AMC), a range of luxury hotels, a portfolio of shopping malls and the British yacht maker Sunseeker.
7. Jeff and Mackenzie Bezos
Net worth: $39.8 billion
Jeff Bezos founded Amazon (AMZN,Tech30) in 1994 after working on Wall Street for about eight years.

He continues to serve as the company's chairman and CEO, overseeing a corporate evolution where Amazon expanded its sales focus from books to an endless range of consumer goods.

Amazon Studios is now increasingly competing in the same league as Netflix (NFLX,Tech30) and established cable networks like HBO.
8. Bernard Arnault and Helene Mercier
Net worth: $38.7 billion
French businessman Bernard Arnault is chairman and CEO of the luxury goods conglomerate LVMH.

The company owns well-known brands including Fendi, Givenchy, Louis Vuitton, TAG Heuer and Benefit Cosmetics.

The Arnault family own a 5.6% stake in the group, which has a market value of 85 billion euros ($92.5 billion).

Arnault's second wife Helene Mercier is an acclaimed pianist from Quebec.
9. Mark Zuckerberg and Priscilla Chan
Net worth: $38.5 billion
Facebook (FB, Tech30) founder and CEO Mark Zuckerberg, 31, andPriscilla Chan, 30, are the youngest couple on this list.

They met at Harvard and weremarried in 2012, a day after his social media company began trading on Wall Street.

In 2010, Zuckerberg signed the Giving Pledge, committing to give away the majority of his wealth to philanthropic causes.
10. Jim and Lynne Walton
Net worth: $36.2 billion
Jim Walton is the youngest son of Wal-Mart (WMT) founder Samuel Walton.

He is on the board of directors of Wal-Mart and is also chairman and CEO at Arvest Bank Group, which operates in Arkansas, Kansas, Missouri and Oklahoma.

Jim is also chairman of a newspaper group called Community Publishers, Inc
Culled from cnn