Finding the Fourth Proportional to 115,894,798.18, 159,943,717.18 and 66,350,711.58
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Solution
The fourth proportional to 115,894,798.18, 159,943,717.18 and 66,350,711.58 is: 91,569,074.84
Step by Step Solution
- Step 1: Write the proportion equation
115,894,798.18 : 159,943,717.18 = 66,350,711.58 : x - Step 2: Convert to fraction form
115,894,798.18/159,943,717.18 = 66,350,711.58/x - Step 3: Cross multiply
115,894,798.18x = 159,943,717.18 × 66,350,711.58 - Step 4: Simplify right side
115,894,798.18x = 10,612,379,447,643,272 - Step 5: Solve for x
x = 10,612,379,447,643,272/115,894,798.18 - Step 6: Final answer
x = 91,569,074.84
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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.