Finding the Fourth Proportional to 87,120,197.80, 130,680,296.70 and 41,770,565.80
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Solution
The fourth proportional to 87,120,197.80, 130,680,296.70 and 41,770,565.80 is: 62,655,848.70
Step by Step Solution
- Step 1: Write the proportion equation
87,120,197.80 : 130,680,296.70 = 41,770,565.80 : x - Step 2: Convert to fraction form
87,120,197.80/130,680,296.70 = 41,770,565.80/x - Step 3: Cross multiply
87,120,197.80x = 130,680,296.70 × 41,770,565.80 - Step 4: Simplify right side
87,120,197.80x = 5,458,589,932,070,873 - Step 5: Solve for x
x = 5,458,589,932,070,873/87,120,197.80 - Step 6: Final answer
x = 62,655,848.70
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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.