Finding the Fourth Proportional to 79,947,120.81, 110,327,787.32 and 46,907,931.99
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Solution
The fourth proportional to 79,947,120.81, 110,327,787.32 and 46,907,931.99 is: 64,733,392.42
Step by Step Solution
- Step 1: Write the proportion equation
79,947,120.81 : 110,327,787.32 = 46,907,931.99 : x - Step 2: Convert to fraction form
79,947,120.81/110,327,787.32 = 46,907,931.99/x - Step 3: Cross multiply
79,947,120.81x = 110,327,787.32 × 46,907,931.99 - Step 4: Simplify right side
79,947,120.81x = 5,175,248,343,979,205 - Step 5: Solve for x
x = 5,175,248,343,979,205/79,947,120.81 - Step 6: Final answer
x = 64,733,392.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.