Finding the Fourth Proportional to 20,246,690.70, 30,372,700.05 and 7,476,165.90
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Solution
The fourth proportional to 20,246,690.70, 30,372,700.05 and 7,476,165.90 is: 11,215,232.54
Step by Step Solution
- Step 1: Write the proportion equation
20,246,690.70 : 30,372,700.05 = 7,476,165.90 : x - Step 2: Convert to fraction form
20,246,690.70/30,372,700.05 = 7,476,165.90/x - Step 3: Cross multiply
20,246,690.70x = 30,372,700.05 × 7,476,165.90 - Step 4: Simplify right side
20,246,690.70x = 227,071,344,404,738.31 - Step 5: Solve for x
x = 227,071,344,404,738.31/20,246,690.70 - Step 6: Final answer
x = 11,215,232.54
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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.