Finding the Fourth Proportional to 5,162,591, 7,124,098.56 and 2,987,169.68
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Solution
The fourth proportional to 5,162,591, 7,124,098.56 and 2,987,169.68 is: 4,122,133.87
Step by Step Solution
- Step 1: Write the proportion equation
5,162,591 : 7,124,098.56 = 2,987,169.68 : x - Step 2: Convert to fraction form
5,162,591/7,124,098.56 = 2,987,169.68/x - Step 3: Cross multiply
5,162,591x = 7,124,098.56 × 2,987,169.68 - Step 4: Simplify right side
5,162,591x = 21,280,891,215,763.66 - Step 5: Solve for x
x = 21,280,891,215,763.66/5,162,591 - Step 6: Final answer
x = 4,122,133.87
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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.