10 richest people on the planet
2. Bill Gates
America's richest man, Gates is the co-founder and chairman of Microsoft, the world's biggest software company. Gates stake in the Windows maker — about 5 percent of the company's float — makes up about a quarter of his total wealth. The rest of his fortune lies in Cascade Investment, a closely held investment vehicle. A noted philanthropist, Gates has gifted $28 billion to his foundation.
Did you know?
While an undergrad at Harvard, Gates devised an algorithm for pancake sorting. Apparently, they have a lot of free time in Cambridge. He scored 1590 out of 1600 on his SAT.