Finding the Fourth Proportional to 18,384,821.20, 27,577,231.80 and 6,267,966.40
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Solution
The fourth proportional to 18,384,821.20, 27,577,231.80 and 6,267,966.40 is: 9,401,949.60
Step by Step Solution
- Step 1: Write the proportion equation
18,384,821.20 : 27,577,231.80 = 6,267,966.40 : x - Step 2: Convert to fraction form
18,384,821.20/27,577,231.80 = 6,267,966.40/x - Step 3: Cross multiply
18,384,821.20x = 27,577,231.80 × 6,267,966.40 - Step 4: Simplify right side
18,384,821.20x = 172,853,162,327,411.53 - Step 5: Solve for x
x = 172,853,162,327,411.53/18,384,821.20 - Step 6: Final answer
x = 9,401,949.60
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1.5x scale
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.