Finding the Fourth Proportional to 79,287,067.68, 109,463,057.28 and 49,943,554.08
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Solution
The fourth proportional to 79,287,067.68, 109,463,057.28 and 49,943,554.08 is: 68,951,649.76
Step by Step Solution
- Step 1: Write the proportion equation
79,287,067.68 : 109,463,057.28 = 49,943,554.08 : x - Step 2: Convert to fraction form
79,287,067.68/109,463,057.28 = 49,943,554.08/x - Step 3: Cross multiply
79,287,067.68x = 109,463,057.28 × 49,943,554.08 - Step 4: Simplify right side
79,287,067.68x = 5,466,974,121,025,818 - Step 5: Solve for x
x = 5,466,974,121,025,818/79,287,067.68 - Step 6: Final answer
x = 68,951,649.76
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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.