Finding the Fourth Proportional to 66,431,207.70, 99,646,811.55 and 37,255,096.80
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Solution
The fourth proportional to 66,431,207.70, 99,646,811.55 and 37,255,096.80 is: 55,882,645.20
Step by Step Solution
- Step 1: Write the proportion equation
66,431,207.70 : 99,646,811.55 = 37,255,096.80 : x - Step 2: Convert to fraction form
66,431,207.70/99,646,811.55 = 37,255,096.80/x - Step 3: Cross multiply
66,431,207.70x = 99,646,811.55 × 37,255,096.80 - Step 4: Simplify right side
66,431,207.70x = 3,712,351,610,106,607.50 - Step 5: Solve for x
x = 3,712,351,610,106,607.50/66,431,207.70 - Step 6: Final answer
x = 55,882,645.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.