In 1992, the Population Crisis Committee Wrote

Short Answer

In 1992, the Population Crisis Committee wrote:
"Large cities in developing countries are growing much faster than cities in the industrialized world ever have. London, which in 1810 became the first industrialized city to top 1 million, now has a population of 11 million. By contrast, Mexico City's population stood at only a million just 50 years ago and now it is 20 million."
Assume that the percentage growth rates of London and Mexico City were constant over the last two centuries. How many times greater is Mexico City's percentage growth rate than London's? Round to the nearest tenth.