Finding the Fourth Proportional to 9,121,402.13, 12,587,535.90 and 4,991,434.13
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Solution
The fourth proportional to 9,121,402.13, 12,587,535.90 and 4,991,434.13 is: 6,888,179.62
Step by Step Solution
- Step 1: Write the proportion equation
9,121,402.13 : 12,587,535.90 = 4,991,434.13 : x - Step 2: Convert to fraction form
9,121,402.13/12,587,535.90 = 4,991,434.13/x - Step 3: Cross multiply
9,121,402.13x = 12,587,535.90 × 4,991,434.13 - Step 4: Simplify right side
9,121,402.13x = 62,829,856,240,922.59 - Step 5: Solve for x
x = 62,829,856,240,922.59/9,121,402.13 - Step 6: Final answer
x = 6,888,179.62
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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.