Home / 217,741,512.60-326,612,268.90-140,647,138.20

Finding the Fourth Proportional to 217,741,512.60, 326,612,268.90 and 140,647,138.20

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Solution

The fourth proportional to 217,741,512.60, 326,612,268.90 and 140,647,138.20 is: 210,970,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,741,512.60 : 326,612,268.90 = 140,647,138.20 : x
  2. Step 2: Convert to fraction form
    217,741,512.60/326,612,268.90 = 140,647,138.20/x
  3. Step 3: Cross multiply
    217,741,512.60x = 326,612,268.90 × 140,647,138.20
  4. Step 4: Simplify right side
    217,741,512.60x = 45,937,080,921,793,856
  5. Step 5: Solve for x
    x = 45,937,080,921,793,856/217,741,512.60
  6. Step 6: Final answer
    x = 210,970,707.30

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1.5x scale

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.