Finding the Fourth Proportional to 81,749,331.97, 112,816,801.55 and 44,581,640.11
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Solution
The fourth proportional to 81,749,331.97, 112,816,801.55 and 44,581,640.11 is: 61,524,148.56
Step by Step Solution
- Step 1: Write the proportion equation
81,749,331.97 : 112,816,801.55 = 44,581,640.11 : x - Step 2: Convert to fraction form
81,749,331.97/112,816,801.55 = 44,581,640.11/x - Step 3: Cross multiply
81,749,331.97x = 112,816,801.55 × 44,581,640.11 - Step 4: Simplify right side
81,749,331.97x = 5,029,558,044,892,802 - Step 5: Solve for x
x = 5,029,558,044,892,802/81,749,331.97 - Step 6: Final answer
x = 61,524,148.56
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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.