Finding the Fourth Proportional to 48,143,642.72, 66,438,226.92 and 27,517,531.76
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Solution
The fourth proportional to 48,143,642.72, 66,438,226.92 and 27,517,531.76 is: 37,974,193.81
Step by Step Solution
- Step 1: Write the proportion equation
48,143,642.72 : 66,438,226.92 = 27,517,531.76 : x - Step 2: Convert to fraction form
48,143,642.72/66,438,226.92 = 27,517,531.76/x - Step 3: Cross multiply
48,143,642.72x = 66,438,226.92 × 27,517,531.76 - Step 4: Simplify right side
48,143,642.72x = 1,828,216,019,349,187.25 - Step 5: Solve for x
x = 1,828,216,019,349,187.25/48,143,642.72 - Step 6: Final answer
x = 37,974,193.81
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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.