Finding the Fourth Proportional to 87,955,949.28, 121,393,779.12 and 48,810,299.52
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Solution
The fourth proportional to 87,955,949.28, 121,393,779.12 and 48,810,299.52 is: 67,366,298.33
Step by Step Solution
- Step 1: Write the proportion equation
87,955,949.28 : 121,393,779.12 = 48,810,299.52 : x - Step 2: Convert to fraction form
87,955,949.28/121,393,779.12 = 48,810,299.52/x - Step 3: Cross multiply
87,955,949.28x = 121,393,779.12 × 48,810,299.52 - Step 4: Simplify right side
87,955,949.28x = 5,925,266,718,711,923 - Step 5: Solve for x
x = 5,925,266,718,711,923/87,955,949.28 - Step 6: Final answer
x = 67,366,298.33
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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.