Home / 132,120,002.80-198,180,004.20-86,203,500.40

Finding the Fourth Proportional to 132,120,002.80, 198,180,004.20 and 86,203,500.40

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Solution

The fourth proportional to 132,120,002.80, 198,180,004.20 and 86,203,500.40 is: 129,305,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,120,002.80 : 198,180,004.20 = 86,203,500.40 : x
  2. Step 2: Convert to fraction form
    132,120,002.80/198,180,004.20 = 86,203,500.40/x
  3. Step 3: Cross multiply
    132,120,002.80x = 198,180,004.20 × 86,203,500.40
  4. Step 4: Simplify right side
    132,120,002.80x = 17,083,810,071,326,702
  5. Step 5: Solve for x
    x = 17,083,810,071,326,702/132,120,002.80
  6. Step 6: Final answer
    x = 129,305,250.60

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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.