Finding the Fourth Proportional to 3,761,680.88, 5,192,708.85 and 2,539,641.80
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Solution
The fourth proportional to 3,761,680.88, 5,192,708.85 and 2,539,641.80 is: 3,505,778.63
Step by Step Solution
- Step 1: Write the proportion equation
3,761,680.88 : 5,192,708.85 = 2,539,641.80 : x - Step 2: Convert to fraction form
3,761,680.88/5,192,708.85 = 2,539,641.80/x - Step 3: Cross multiply
3,761,680.88x = 5,192,708.85 × 2,539,641.80 - Step 4: Simplify right side
3,761,680.88x = 13,187,620,424,726.38 - Step 5: Solve for x
x = 13,187,620,424,726.38/3,761,680.88 - Step 6: Final answer
x = 3,505,778.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.