Finding the Fourth Proportional to 132,479,153.75, 198,740,316.48 and 39,115,562.86
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Solution
The fourth proportional to 132,479,153.75, 198,740,316.48 and 39,115,562.86 is: 58,679,717.68
Step by Step Solution
- Step 1: Write the proportion equation
132,479,153.75 : 198,740,316.48 = 39,115,562.86 : x - Step 2: Convert to fraction form
132,479,153.75/198,740,316.48 = 39,115,562.86/x - Step 3: Cross multiply
132,479,153.75x = 198,740,316.48 × 39,115,562.86 - Step 4: Simplify right side
132,479,153.75x = 7,773,839,340,900,454 - Step 5: Solve for x
x = 7,773,839,340,900,454/132,479,153.75 - Step 6: Final answer
x = 58,679,717.68
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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.