Finding the Fourth Proportional to 87,641,842.19, 120,949,303.39 and 48,482,943.80
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Solution
The fourth proportional to 87,641,842.19, 120,949,303.39 and 48,482,943.80 is: 66,908,432.46
Step by Step Solution
- Step 1: Write the proportion equation
87,641,842.19 : 120,949,303.39 = 48,482,943.80 : x - Step 2: Convert to fraction form
87,641,842.19/120,949,303.39 = 48,482,943.80/x - Step 3: Cross multiply
87,641,842.19x = 120,949,303.39 × 48,482,943.80 - Step 4: Simplify right side
87,641,842.19x = 5,863,978,278,664,105 - Step 5: Solve for x
x = 5,863,978,278,664,105/87,641,842.19 - Step 6: Final answer
x = 66,908,432.46
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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.