Finding the Fourth Proportional to 121,541,857.92, 167,727,759.12 and 66,537,714.42
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Solution
The fourth proportional to 121,541,857.92, 167,727,759.12 and 66,537,714.42 is: 91,822,043.27
Step by Step Solution
- Step 1: Write the proportion equation
121,541,857.92 : 167,727,759.12 = 66,537,714.42 : x - Step 2: Convert to fraction form
121,541,857.92/167,727,759.12 = 66,537,714.42/x - Step 3: Cross multiply
121,541,857.92x = 167,727,759.12 × 66,537,714.42 - Step 4: Simplify right side
121,541,857.92x = 11,160,221,736,633,112 - Step 5: Solve for x
x = 11,160,221,736,633,112/121,541,857.92 - Step 6: Final answer
x = 91,822,043.27
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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.