Finding the Fourth Proportional to 135,960,418.76, 187,625,404.72 and 74,080,757.12
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Solution
The fourth proportional to 135,960,418.76, 187,625,404.72 and 74,080,757.12 is: 102,231,459.45
Step by Step Solution
- Step 1: Write the proportion equation
135,960,418.76 : 187,625,404.72 = 74,080,757.12 : x - Step 2: Convert to fraction form
135,960,418.76/187,625,404.72 = 74,080,757.12/x - Step 3: Cross multiply
135,960,418.76x = 187,625,404.72 × 74,080,757.12 - Step 4: Simplify right side
135,960,418.76x = 13,899,432,036,604,022 - Step 5: Solve for x
x = 13,899,432,036,604,022/135,960,418.76 - Step 6: Final answer
x = 102,231,459.45
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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.