Finding the Fourth Proportional to 20,306,414.20, 30,468,921.52 and 8,795,402.14
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Solution
The fourth proportional to 20,306,414.20, 30,468,921.52 and 8,795,402.14 is: 13,197,131.45
Step by Step Solution
- Step 1: Write the proportion equation
20,306,414.20 : 30,468,921.52 = 8,795,402.14 : x - Step 2: Convert to fraction form
20,306,414.20/30,468,921.52 = 8,795,402.14/x - Step 3: Cross multiply
20,306,414.20x = 30,468,921.52 × 8,795,402.14 - Step 4: Simplify right side
20,306,414.20x = 267,986,417,540,500.06 - Step 5: Solve for x
x = 267,986,417,540,500.06/20,306,414.20 - Step 6: Final answer
x = 13,197,131.45
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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.