Finding the Fourth Proportional to 15,375,469.99, 21,218,591.46 and 8,500,394.92
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Solution
The fourth proportional to 15,375,469.99, 21,218,591.46 and 8,500,394.92 is: 11,730,789.83
Step by Step Solution
- Step 1: Write the proportion equation
15,375,469.99 : 21,218,591.46 = 8,500,394.92 : x - Step 2: Convert to fraction form
15,375,469.99/21,218,591.46 = 8,500,394.92/x - Step 3: Cross multiply
15,375,469.99x = 21,218,591.46 × 8,500,394.92 - Step 4: Simplify right side
15,375,469.99x = 180,366,407,074,656.75 - Step 5: Solve for x
x = 180,366,407,074,656.75/15,375,469.99 - Step 6: Final answer
x = 11,730,789.83
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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.