Finding the Fourth Proportional to 293,417,013.20, 440,125,519.80 and 207,323,571.20
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Solution
The fourth proportional to 293,417,013.20, 440,125,519.80 and 207,323,571.20 is: 310,985,356.80
Step by Step Solution
- Step 1: Write the proportion equation
293,417,013.20 : 440,125,519.80 = 207,323,571.20 : x - Step 2: Convert to fraction form
293,417,013.20/440,125,519.80 = 207,323,571.20/x - Step 3: Cross multiply
293,417,013.20x = 440,125,519.80 × 207,323,571.20 - Step 4: Simplify right side
293,417,013.20x = 91,248,394,541,192,304 - Step 5: Solve for x
x = 91,248,394,541,192,304/293,417,013.20 - Step 6: Final answer
x = 310,985,356.80
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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.