The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.

Explanation

To solve the problem of finding the ratio of the surface areas of the moon and the earth, we can follow these steps:

### Step 1: Understand the relationship between the diameters
We know that the diameter of the moon (Dm) is approximately one fourth of the diameter of the earth (De). This can be expressed mathematically as:
\[ D_m = \frac{1}{4} D_e \]

### Step 2: Convert diameters to radii
The radius (R) is half of the diameter. Therefore, we can express the radii of the moon (Rm) and the earth (Re) as:
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