Finding the Fourth Proportional to 76,722,584.33, 115,156,634.11 and 47,487,991.28
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Solution
The fourth proportional to 76,722,584.33, 115,156,634.11 and 47,487,991.28 is: 71,277,020.75
Step by Step Solution
- Step 1: Write the proportion equation
76,722,584.33 : 115,156,634.11 = 47,487,991.28 : x - Step 2: Convert to fraction form
76,722,584.33/115,156,634.11 = 47,487,991.28/x - Step 3: Cross multiply
76,722,584.33x = 115,156,634.11 × 47,487,991.28 - Step 4: Simplify right side
76,722,584.33x = 5,468,557,235,755,327 - Step 5: Solve for x
x = 5,468,557,235,755,327/76,722,584.33 - Step 6: Final answer
x = 71,277,020.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.