If you added up all the money from all the countries in the world, how much would it amount to? The short answer is, probably a lot.
All jokes aside, to make this question answerable, let’s start by asking, “How much money is there in actual United States dollars?” Since the statistics for the U.S. are easy to come by, we can examine this question in a couple of different ways.
Read more here courtesy of HowStuffWorks.com