Finding the Fourth Proportional to 21,728,747.71, 32,561,220.52 and 10,931,207.95
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Solution
The fourth proportional to 21,728,747.71, 32,561,220.52 and 10,931,207.95 is: 16,380,763.27
Step by Step Solution
- Step 1: Write the proportion equation
21,728,747.71 : 32,561,220.52 = 10,931,207.95 : x - Step 2: Convert to fraction form
21,728,747.71/32,561,220.52 = 10,931,207.95/x - Step 3: Cross multiply
21,728,747.71x = 32,561,220.52 × 10,931,207.95 - Step 4: Simplify right side
21,728,747.71x = 355,933,472,392,465 - Step 5: Solve for x
x = 355,933,472,392,465/21,728,747.71 - Step 6: Final answer
x = 16,380,763.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.