Finding the Fourth Proportional to 124,861,440.75, 172,297,113.17 and 74,615,688.12
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Solution
The fourth proportional to 124,861,440.75, 172,297,113.17 and 74,615,688.12 is: 102,962,672.72
Step by Step Solution
- Step 1: Write the proportion equation
124,861,440.75 : 172,297,113.17 = 74,615,688.12 : x - Step 2: Convert to fraction form
124,861,440.75/172,297,113.17 = 74,615,688.12/x - Step 3: Cross multiply
124,861,440.75x = 172,297,113.17 × 74,615,688.12 - Step 4: Simplify right side
124,861,440.75x = 12,856,067,659,895,986 - Step 5: Solve for x
x = 12,856,067,659,895,986/124,861,440.75 - Step 6: Final answer
x = 102,962,672.72
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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.