The population of Japan is about 4.5 times the population of Canada. The sum of the populations is about 150,000,000.

Let's denote the population of Canada as "C" and the population of Japan as "J". According to the information given: 1. The population of Japan is about 4.5 times the population of Canada: J = 4.5 * C 2. The sum of the populations is about 150,000,000: J + C = 150,000,000 Now we can set up a system of two equations based on the given information: Equation 1: J = 4.5 * C Equation 2: J + C = 150,000,000 Let's solve this system of equations to find the populations of Japan and Canada. Substitute the value of J from Equation 1 into Equation 2: 4.5 * C + C = 150,000,000 Combine the terms with C: 5.5 * C = 150,000,000 Now solve for C: C = 150,000,000 / 5.5 C ≈ 27,272,727 Now that we know the population of Canada, we can find the population of Japan using Equation 1: J = 4.5 * C J = 4.5 * 27,272,727 J ≈ 122,727,273 So, the approximate population of Canada is 27,272,727 and the approximate population of Japan is 122,727,273.