Finding the Fourth Proportional to 5,387,116.11, 7,434,378.25 and 2,939,885.18
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Solution
The fourth proportional to 5,387,116.11, 7,434,378.25 and 2,939,885.18 is: 4,057,127.78
Step by Step Solution
- Step 1: Write the proportion equation
5,387,116.11 : 7,434,378.25 = 2,939,885.18 : x - Step 2: Convert to fraction form
5,387,116.11/7,434,378.25 = 2,939,885.18/x - Step 3: Cross multiply
5,387,116.11x = 7,434,378.25 × 2,939,885.18 - Step 4: Simplify right side
5,387,116.11x = 21,856,218,423,046.65 - Step 5: Solve for x
x = 21,856,218,423,046.65/5,387,116.11 - Step 6: Final answer
x = 4,057,127.78
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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.