Finding the Fourth Proportional to 124,578,343.20, 186,867,514.80 and 55,491,013.20
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Solution
The fourth proportional to 124,578,343.20, 186,867,514.80 and 55,491,013.20 is: 83,236,519.80
Step by Step Solution
- Step 1: Write the proportion equation
124,578,343.20 : 186,867,514.80 = 55,491,013.20 : x - Step 2: Convert to fraction form
124,578,343.20/186,867,514.80 = 55,491,013.20/x - Step 3: Cross multiply
124,578,343.20x = 186,867,514.80 × 55,491,013.20 - Step 4: Simplify right side
124,578,343.20x = 10,369,467,730,417,996 - Step 5: Solve for x
x = 10,369,467,730,417,996/124,578,343.20 - Step 6: Final answer
x = 83,236,519.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.