Finding the Fourth Proportional to 18,191,864.10, 27,288,233.55 and 5,412,785.70
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Solution
The fourth proportional to 18,191,864.10, 27,288,233.55 and 5,412,785.70 is: 8,119,308.69
Step by Step Solution
- Step 1: Write the proportion equation
18,191,864.10 : 27,288,233.55 = 5,412,785.70 : x - Step 2: Convert to fraction form
18,191,864.10/27,288,233.55 = 5,412,785.70/x - Step 3: Cross multiply
18,191,864.10x = 27,288,233.55 × 5,412,785.70 - Step 4: Simplify right side
18,191,864.10x = 147,705,360,337,700.25 - Step 5: Solve for x
x = 147,705,360,337,700.25/18,191,864.10 - Step 6: Final answer
x = 8,119,308.69
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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.