Finding the Fourth Proportional to 862,894,480.20, 1,294,341,720.30 and 318,027,049.80
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Solution
The fourth proportional to 862,894,480.20, 1,294,341,720.30 and 318,027,049.80 is: 477,040,574.70
Step by Step Solution
- Step 1: Write the proportion equation
862,894,480.20 : 1,294,341,720.30 = 318,027,049.80 : x - Step 2: Convert to fraction form
862,894,480.20/1,294,341,720.30 = 318,027,049.80/x - Step 3: Cross multiply
862,894,480.20x = 1,294,341,720.30 × 318,027,049.80 - Step 4: Simplify right side
862,894,480.20x = 411,635,678,740,065,792 - Step 5: Solve for x
x = 411,635,678,740,065,792/862,894,480.20 - Step 6: Final answer
x = 477,040,574.70
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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.