Finding the Fourth Proportional to 81,520,109.09, 112,498,239.77 and 44,350,656
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Solution
The fourth proportional to 81,520,109.09, 112,498,239.77 and 44,350,656 is: 61,204,171.44
Step by Step Solution
- Step 1: Write the proportion equation
81,520,109.09 : 112,498,239.77 = 44,350,656 : x - Step 2: Convert to fraction form
81,520,109.09/112,498,239.77 = 44,350,656/x - Step 3: Cross multiply
81,520,109.09x = 112,498,239.77 × 44,350,656 - Step 4: Simplify right side
81,520,109.09x = 4,989,370,732,644,789 - Step 5: Solve for x
x = 4,989,370,732,644,789/81,520,109.09 - Step 6: Final answer
x = 61,204,171.44
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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.