Finding the Fourth Proportional to 20,901,908.17, 31,352,864.89 and 6,526,207.18
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Solution
The fourth proportional to 20,901,908.17, 31,352,864.89 and 6,526,207.18 is: 9,789,311.59
Step by Step Solution
- Step 1: Write the proportion equation
20,901,908.17 : 31,352,864.89 = 6,526,207.18 : x - Step 2: Convert to fraction form
20,901,908.17/31,352,864.89 = 6,526,207.18/x - Step 3: Cross multiply
20,901,908.17x = 31,352,864.89 × 6,526,207.18 - Step 4: Simplify right side
20,901,908.17x = 204,615,291,958,687.91 - Step 5: Solve for x
x = 204,615,291,958,687.91/20,901,908.17 - Step 6: Final answer
x = 9,789,311.59
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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.