Finding the Fourth Proportional to 87,898,379.56, 121,291,023.97 and 50,740,630.72
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Solution
The fourth proportional to 87,898,379.56, 121,291,023.97 and 50,740,630.72 is: 70,017,025.20
Step by Step Solution
- Step 1: Write the proportion equation
87,898,379.56 : 121,291,023.97 = 50,740,630.72 : x - Step 2: Convert to fraction form
87,898,379.56/121,291,023.97 = 50,740,630.72/x - Step 3: Cross multiply
87,898,379.56x = 121,291,023.97 × 50,740,630.72 - Step 4: Simplify right side
87,898,379.56x = 6,154,383,056,912,438 - Step 5: Solve for x
x = 6,154,383,056,912,438/87,898,379.56 - Step 6: Final answer
x = 70,017,025.20
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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.