Finding the Fourth Proportional to 110,638,375.20, 165,957,562.80 and 81,581,838.53
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Solution
The fourth proportional to 110,638,375.20, 165,957,562.80 and 81,581,838.53 is: 122,372,757.79
Step by Step Solution
- Step 1: Write the proportion equation
110,638,375.20 : 165,957,562.80 = 81,581,838.53 : x - Step 2: Convert to fraction form
110,638,375.20/165,957,562.80 = 81,581,838.53/x - Step 3: Cross multiply
110,638,375.20x = 165,957,562.80 × 81,581,838.53 - Step 4: Simplify right side
110,638,375.20x = 13,539,123,090,352,148 - Step 5: Solve for x
x = 13,539,123,090,352,148/110,638,375.20 - Step 6: Final answer
x = 122,372,757.79
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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.