Finding the Fourth Proportional to 635,120,686.08, 876,561,338.88 and 387,745,447.68
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Solution
The fourth proportional to 635,120,686.08, 876,561,338.88 and 387,745,447.68 is: 535,146,589.01
Step by Step Solution
- Step 1: Write the proportion equation
635,120,686.08 : 876,561,338.88 = 387,745,447.68 : x - Step 2: Convert to fraction form
635,120,686.08/876,561,338.88 = 387,745,447.68/x - Step 3: Cross multiply
635,120,686.08x = 876,561,338.88 × 387,745,447.68 - Step 4: Simplify right side
635,120,686.08x = 339,882,668,763,005,824 - Step 5: Solve for x
x = 339,882,668,763,005,824/635,120,686.08 - Step 6: Final answer
x = 535,146,589.01
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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.