Finding the Fourth Proportional to 84,217,781.97, 126,338,723.46 and 25,930,391.70
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Solution
The fourth proportional to 84,217,781.97, 126,338,723.46 and 25,930,391.70 is: 38,899,297.86
Step by Step Solution
- Step 1: Write the proportion equation
84,217,781.97 : 126,338,723.46 = 25,930,391.70 : x - Step 2: Convert to fraction form
84,217,781.97/126,338,723.46 = 25,930,391.70/x - Step 3: Cross multiply
84,217,781.97x = 126,338,723.46 × 25,930,391.70 - Step 4: Simplify right side
84,217,781.97x = 3,276,012,586,195,779 - Step 5: Solve for x
x = 3,276,012,586,195,779/84,217,781.97 - Step 6: Final answer
x = 38,899,297.86
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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.