Home / 217,741,517.70-326,612,276.55-81,398,688.90

Finding the Fourth Proportional to 217,741,517.70, 326,612,276.55 and 81,398,688.90

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Solution

The fourth proportional to 217,741,517.70, 326,612,276.55 and 81,398,688.90 is: 122,098,033.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,741,517.70 : 326,612,276.55 = 81,398,688.90 : x
  2. Step 2: Convert to fraction form
    217,741,517.70/326,612,276.55 = 81,398,688.90/x
  3. Step 3: Cross multiply
    217,741,517.70x = 326,612,276.55 × 81,398,688.90
  4. Step 4: Simplify right side
    217,741,517.70x = 26,585,811,089,814,220
  5. Step 5: Solve for x
    x = 26,585,811,089,814,220/217,741,517.70
  6. Step 6: Final answer
    x = 122,098,033.35

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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.