Finding the Fourth Proportional to 472,396,044.80, 708,594,067.20 and 429,349,323.80
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Solution
The fourth proportional to 472,396,044.80, 708,594,067.20 and 429,349,323.80 is: 644,023,985.70
Step by Step Solution
- Step 1: Write the proportion equation
472,396,044.80 : 708,594,067.20 = 429,349,323.80 : x - Step 2: Convert to fraction form
472,396,044.80/708,594,067.20 = 429,349,323.80/x - Step 3: Cross multiply
472,396,044.80x = 708,594,067.20 × 429,349,323.80 - Step 4: Simplify right side
472,396,044.80x = 304,234,383,601,011,776 - Step 5: Solve for x
x = 304,234,383,601,011,776/472,396,044.80 - Step 6: Final answer
x = 644,023,985.70
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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.