Finding the Fourth Proportional to 91,168,042.24, 125,806,914.56 and 49,906,952.96
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Solution
The fourth proportional to 91,168,042.24, 125,806,914.56 and 49,906,952.96 is: 68,868,866.90
Step by Step Solution
- Step 1: Write the proportion equation
91,168,042.24 : 125,806,914.56 = 49,906,952.96 : x - Step 2: Convert to fraction form
91,168,042.24/125,806,914.56 = 49,906,952.96/x - Step 3: Cross multiply
91,168,042.24x = 125,806,914.56 × 49,906,952.96 - Step 4: Simplify right side
91,168,042.24x = 6,278,639,766,988,659 - Step 5: Solve for x
x = 6,278,639,766,988,659/91,168,042.24 - Step 6: Final answer
x = 68,868,866.90
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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.