Finding the Fourth Proportional to 87,488,515.20, 131,232,772.80 and 36,470,179.20
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Solution
The fourth proportional to 87,488,515.20, 131,232,772.80 and 36,470,179.20 is: 54,705,268.80
Step by Step Solution
- Step 1: Write the proportion equation
87,488,515.20 : 131,232,772.80 = 36,470,179.20 : x - Step 2: Convert to fraction form
87,488,515.20/131,232,772.80 = 36,470,179.20/x - Step 3: Cross multiply
87,488,515.20x = 131,232,772.80 × 36,470,179.20 - Step 4: Simplify right side
87,488,515.20x = 4,786,082,740,928,886 - Step 5: Solve for x
x = 4,786,082,740,928,886/87,488,515.20 - Step 6: Final answer
x = 54,705,268.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.