Finding the Fourth Proportional to 318,979,652.04, 440,192,112.66 and 172,302,000.84
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Solution
The fourth proportional to 318,979,652.04, 440,192,112.66 and 172,302,000.84 is: 237,776,865.33
Step by Step Solution
- Step 1: Write the proportion equation
318,979,652.04 : 440,192,112.66 = 172,302,000.84 : x - Step 2: Convert to fraction form
318,979,652.04/440,192,112.66 = 172,302,000.84/x - Step 3: Cross multiply
318,979,652.04x = 440,192,112.66 × 172,302,000.84 - Step 4: Simplify right side
318,979,652.04x = 75,845,981,765,304,704 - Step 5: Solve for x
x = 75,845,981,765,304,704/318,979,652.04 - Step 6: Final answer
x = 237,776,865.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.