Finding the Fourth Proportional to 472,471,480.20, 708,707,220.30 and 264,996,913.80
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Solution
The fourth proportional to 472,471,480.20, 708,707,220.30 and 264,996,913.80 is: 397,495,370.70
Step by Step Solution
- Step 1: Write the proportion equation
472,471,480.20 : 708,707,220.30 = 264,996,913.80 : x - Step 2: Convert to fraction form
472,471,480.20/708,707,220.30 = 264,996,913.80/x - Step 3: Cross multiply
472,471,480.20x = 708,707,220.30 × 264,996,913.80 - Step 4: Simplify right side
472,471,480.20x = 187,805,226,167,276,704 - Step 5: Solve for x
x = 187,805,226,167,276,704/472,471,480.20 - Step 6: Final answer
x = 397,495,370.70
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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.