Finding the Fourth Proportional to 123,722,959.41, 170,718,704.19 and 71,501,910.84
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Solution
The fourth proportional to 123,722,959.41, 170,718,704.19 and 71,501,910.84 is: 98,661,668.17
Step by Step Solution
- Step 1: Write the proportion equation
123,722,959.41 : 170,718,704.19 = 71,501,910.84 : x - Step 2: Convert to fraction form
123,722,959.41/170,718,704.19 = 71,501,910.84/x - Step 3: Cross multiply
123,722,959.41x = 170,718,704.19 × 71,501,910.84 - Step 4: Simplify right side
123,722,959.41x = 12,206,713,565,713,714 - Step 5: Solve for x
x = 12,206,713,565,713,714/123,722,959.41 - Step 6: Final answer
x = 98,661,668.17
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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.