Finding the Fourth Proportional to 10,935,921.70, 16,403,882.55 and 10,306,065.70
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Solution
The fourth proportional to 10,935,921.70, 16,403,882.55 and 10,306,065.70 is: 15,459,098.55
Step by Step Solution
- Step 1: Write the proportion equation
10,935,921.70 : 16,403,882.55 = 10,306,065.70 : x - Step 2: Convert to fraction form
10,935,921.70/16,403,882.55 = 10,306,065.70/x - Step 3: Cross multiply
10,935,921.70x = 16,403,882.55 × 10,306,065.70 - Step 4: Simplify right side
10,935,921.70x = 169,059,491,295,383.53 - Step 5: Solve for x
x = 169,059,491,295,383.53/10,935,921.70 - Step 6: Final answer
x = 15,459,098.55
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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.