The scale of the map is 1: 4000000. Determine the distance on the terrain, If on the map it is shown as a segment of 2 cm.

Let’s solve the problem using proportions.

1: 4,000,000 = 2: x.

To find the unknown extreme term of the proportion, it is necessary to multiply the average terms and divide their product by the known extreme term.

x = 4,000,000 * 2: 1;

x = 8,000,000 (cm) – distance on the ground.

Let’s express the answer in larger units:

8,000,000 cm = 80 km.

Answer: the distance on the ground is 80 km.