Finding the Fourth Proportional to 5,423,129.28, 7,484,391.84 and 2,976,212.52
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Solution
The fourth proportional to 5,423,129.28, 7,484,391.84 and 2,976,212.52 is: 4,107,433.10
Step by Step Solution
- Step 1: Write the proportion equation
5,423,129.28 : 7,484,391.84 = 2,976,212.52 : x - Step 2: Convert to fraction form
5,423,129.28/7,484,391.84 = 2,976,212.52/x - Step 3: Cross multiply
5,423,129.28x = 7,484,391.84 × 2,976,212.52 - Step 4: Simplify right side
5,423,129.28x = 22,275,140,698,793.84 - Step 5: Solve for x
x = 22,275,140,698,793.84/5,423,129.28 - Step 6: Final answer
x = 4,107,433.10
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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.