Finding the Fourth Proportional to 15,126,689.16, 22,690,020.78 and 5,542,817.76
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Solution
The fourth proportional to 15,126,689.16, 22,690,020.78 and 5,542,817.76 is: 8,314,221.89
Step by Step Solution
- Step 1: Write the proportion equation
15,126,689.16 : 22,690,020.78 = 5,542,817.76 : x - Step 2: Convert to fraction form
15,126,689.16/22,690,020.78 = 5,542,817.76/x - Step 3: Cross multiply
15,126,689.16x = 22,690,020.78 × 5,542,817.76 - Step 4: Simplify right side
15,126,689.16x = 125,766,650,154,153.05 - Step 5: Solve for x
x = 125,766,650,154,153.05/15,126,689.16 - Step 6: Final answer
x = 8,314,221.89
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1.5x scale
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.