Finding the Fourth Proportional to 5,732,771.29, 7,910,987.18 and 3,119,286.12
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Solution
The fourth proportional to 5,732,771.29, 7,910,987.18 and 3,119,286.12 is: 4,304,485.78
Step by Step Solution
- Step 1: Write the proportion equation
5,732,771.29 : 7,910,987.18 = 3,119,286.12 : x - Step 2: Convert to fraction form
5,732,771.29/7,910,987.18 = 3,119,286.12/x - Step 3: Cross multiply
5,732,771.29x = 7,910,987.18 × 3,119,286.12 - Step 4: Simplify right side
5,732,771.29x = 24,676,632,505,308.61 - Step 5: Solve for x
x = 24,676,632,505,308.61/5,732,771.29 - Step 6: Final answer
x = 4,304,485.78
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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.