With a fortune around $75 billion, Microsoft founder Bill Gates is already the world’s richest man. Together with the power of compounding, more money will create even more wealth. According to research by Oxfam, Bill Gates will be the world’s first trillionaire in 25 years as his total wealth grows at the expected market return of the ultra-rich portfolio. Despite giving money away, Gates’ fortune has risen 50 percent from $50 billion to $75 billion since he stepped down from working full-time at Microsoft in 2006. At the current rate, Gates is predicted to hit the trillion mark by the age of 86. “If you are already rich, you have to try hard not to keep getting a lot richer,” Oxfam notes. (oxfam.org)