Finding the Fourth Proportional to 87,641,851.14, 120,949,315.74 and 48,482,952.75
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Solution
The fourth proportional to 87,641,851.14, 120,949,315.74 and 48,482,952.75 is: 66,908,444.81
Step by Step Solution
- Step 1: Write the proportion equation
87,641,851.14 : 120,949,315.74 = 48,482,952.75 : x - Step 2: Convert to fraction form
87,641,851.14/120,949,315.74 = 48,482,952.75/x - Step 3: Cross multiply
87,641,851.14x = 120,949,315.74 × 48,482,952.75 - Step 4: Simplify right side
87,641,851.14x = 5,863,979,960,167,251 - Step 5: Solve for x
x = 5,863,979,960,167,251/87,641,851.14 - Step 6: Final answer
x = 66,908,444.81
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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.