Finding the Fourth Proportional to 100,720,027.12, 138,657,872.96 and 96,092,504.61
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Solution
The fourth proportional to 100,720,027.12, 138,657,872.96 and 96,092,504.61 is: 132,287,318.39
Step by Step Solution
- Step 1: Write the proportion equation
100,720,027.12 : 138,657,872.96 = 96,092,504.61 : x - Step 2: Convert to fraction form
100,720,027.12/138,657,872.96 = 96,092,504.61/x - Step 3: Cross multiply
100,720,027.12x = 138,657,872.96 × 96,092,504.61 - Step 4: Simplify right side
100,720,027.12x = 13,323,982,295,447,844 - Step 5: Solve for x
x = 13,323,982,295,447,844/100,720,027.12 - Step 6: Final answer
x = 132,287,318.39
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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.