Finding the Fourth Proportional to 124,578,473.20, 186,867,709.80 and 55,491,143.20
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Solution
The fourth proportional to 124,578,473.20, 186,867,709.80 and 55,491,143.20 is: 83,236,714.80
Step by Step Solution
- Step 1: Write the proportion equation
124,578,473.20 : 186,867,709.80 = 55,491,143.20 : x - Step 2: Convert to fraction form
124,578,473.20/186,867,709.80 = 55,491,143.20/x - Step 3: Cross multiply
124,578,473.20x = 186,867,709.80 × 55,491,143.20 - Step 4: Simplify right side
124,578,473.20x = 10,369,502,843,967,844 - Step 5: Solve for x
x = 10,369,502,843,967,844/124,578,473.20 - Step 6: Final answer
x = 83,236,714.80
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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.