Finding the Fourth Proportional to 20,874,631.97, 31,279,989.71 and 8,737,487.28
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Solution
The fourth proportional to 20,874,631.97, 31,279,989.71 and 8,737,487.28 is: 13,092,854.17
Step by Step Solution
- Step 1: Write the proportion equation
20,874,631.97 : 31,279,989.71 = 8,737,487.28 : x - Step 2: Convert to fraction form
20,874,631.97/31,279,989.71 = 8,737,487.28/x - Step 3: Cross multiply
20,874,631.97x = 31,279,989.71 × 8,737,487.28 - Step 4: Simplify right side
20,874,631.97x = 273,308,512,231,499.56 - Step 5: Solve for x
x = 273,308,512,231,499.56/20,874,631.97 - Step 6: Final answer
x = 13,092,854.17
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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.