Finding the Fourth Proportional to 141,052,257.44, 194,641,432.80 and 79,160,642.72
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Solution
The fourth proportional to 141,052,257.44, 194,641,432.80 and 79,160,642.72 is: 109,235,691.79
Step by Step Solution
- Step 1: Write the proportion equation
141,052,257.44 : 194,641,432.80 = 79,160,642.72 : x - Step 2: Convert to fraction form
141,052,257.44/194,641,432.80 = 79,160,642.72/x - Step 3: Cross multiply
141,052,257.44x = 194,641,432.80 × 79,160,642.72 - Step 4: Simplify right side
141,052,257.44x = 15,407,940,920,389,690 - Step 5: Solve for x
x = 15,407,940,920,389,690/141,052,257.44 - Step 6: Final answer
x = 109,235,691.79
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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.