Finding the Fourth Proportional to 71,852,419.24, 99,156,374.76 and 38,812,666.68
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Solution
The fourth proportional to 71,852,419.24, 99,156,374.76 and 38,812,666.68 is: 53,561,499.58
Step by Step Solution
- Step 1: Write the proportion equation
71,852,419.24 : 99,156,374.76 = 38,812,666.68 : x - Step 2: Convert to fraction form
71,852,419.24/99,156,374.76 = 38,812,666.68/x - Step 3: Cross multiply
71,852,419.24x = 99,156,374.76 × 38,812,666.68 - Step 4: Simplify right side
71,852,419.24x = 3,848,523,322,757,045 - Step 5: Solve for x
x = 3,848,523,322,757,045/71,852,419.24 - Step 6: Final answer
x = 53,561,499.58
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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.