Finding the Fourth Proportional to 2,753,138.20, 4,129,707.30 and 2,186,267.80
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Solution
The fourth proportional to 2,753,138.20, 4,129,707.30 and 2,186,267.80 is: 3,279,401.70
Step by Step Solution
- Step 1: Write the proportion equation
2,753,138.20 : 4,129,707.30 = 2,186,267.80 : x - Step 2: Convert to fraction form
2,753,138.20/4,129,707.30 = 2,186,267.80/x - Step 3: Cross multiply
2,753,138.20x = 4,129,707.30 × 2,186,267.80 - Step 4: Simplify right side
2,753,138.20x = 9,028,646,093,414.94 - Step 5: Solve for x
x = 9,028,646,093,414.94/2,753,138.20 - Step 6: Final answer
x = 3,279,401.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.