Finding the Fourth Proportional to 5,732,771.19, 7,910,987.05 and 3,119,286.03
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Solution
The fourth proportional to 5,732,771.19, 7,910,987.05 and 3,119,286.03 is: 4,304,485.66
Step by Step Solution
- Step 1: Write the proportion equation
5,732,771.19 : 7,910,987.05 = 3,119,286.03 : x - Step 2: Convert to fraction form
5,732,771.19/7,910,987.05 = 3,119,286.03/x - Step 3: Cross multiply
5,732,771.19x = 7,910,987.05 × 3,119,286.03 - Step 4: Simplify right side
5,732,771.19x = 24,676,631,377,641.92 - Step 5: Solve for x
x = 24,676,631,377,641.92/5,732,771.19 - Step 6: Final answer
x = 4,304,485.66
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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.