Finding the Fourth Proportional to 20,561,892.60, 28,375,576.14 and 11,394,687.48
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Solution
The fourth proportional to 20,561,892.60, 28,375,576.14 and 11,394,687.48 is: 15,724,759.80
Step by Step Solution
- Step 1: Write the proportion equation
20,561,892.60 : 28,375,576.14 = 11,394,687.48 : x - Step 2: Convert to fraction form
20,561,892.60/28,375,576.14 = 11,394,687.48/x - Step 3: Cross multiply
20,561,892.60x = 28,375,576.14 × 11,394,687.48 - Step 4: Simplify right side
20,561,892.60x = 323,330,822,180,244.75 - Step 5: Solve for x
x = 323,330,822,180,244.75/20,561,892.60 - Step 6: Final answer
x = 15,724,759.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.