Finding the Fourth Proportional to 618,421,868.20, 927,744,776.70 and 310,940,165.80
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Solution
The fourth proportional to 618,421,868.20, 927,744,776.70 and 310,940,165.80 is: 466,466,549.00
Step by Step Solution
- Step 1: Write the proportion equation
618,421,868.20 : 927,744,776.70 = 310,940,165.80 : x - Step 2: Convert to fraction form
618,421,868.20/927,744,776.70 = 310,940,165.80/x - Step 3: Cross multiply
618,421,868.20x = 927,744,776.70 × 310,940,165.80 - Step 4: Simplify right side
618,421,868.20x = 288,473,114,687,182,016 - Step 5: Solve for x
x = 288,473,114,687,182,016/618,421,868.20 - Step 6: Final answer
x = 466,466,549.00
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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.