Finding the Fourth Proportional to 121,244,454.68, 167,317,414.58 and 65,489,874.80
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Solution
The fourth proportional to 121,244,454.68, 167,317,414.58 and 65,489,874.80 is: 90,376,063.47
Step by Step Solution
- Step 1: Write the proportion equation
121,244,454.68 : 167,317,414.58 = 65,489,874.80 : x - Step 2: Convert to fraction form
121,244,454.68/167,317,414.58 = 65,489,874.80/x - Step 3: Cross multiply
121,244,454.68x = 167,317,414.58 × 65,489,874.80 - Step 4: Simplify right side
121,244,454.68x = 10,957,596,532,031,034 - Step 5: Solve for x
x = 10,957,596,532,031,034/121,244,454.68 - Step 6: Final answer
x = 90,376,063.47
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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.