Finding the Fourth Proportional to 81,138,348.24, 121,721,694.12 and 35,698,961.76
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Solution
The fourth proportional to 81,138,348.24, 121,721,694.12 and 35,698,961.76 is: 53,554,677.88
Step by Step Solution
- Step 1: Write the proportion equation
81,138,348.24 : 121,721,694.12 = 35,698,961.76 : x - Step 2: Convert to fraction form
81,138,348.24/121,721,694.12 = 35,698,961.76/x - Step 3: Cross multiply
81,138,348.24x = 121,721,694.12 × 35,698,961.76 - Step 4: Simplify right side
81,138,348.24x = 4,345,338,103,752,297 - Step 5: Solve for x
x = 4,345,338,103,752,297/81,138,348.24 - Step 6: Final answer
x = 53,554,677.88
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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.