Home / 170,431,498.20-255,647,247.30-142,087,978.20

Finding the Fourth Proportional to 170,431,498.20, 255,647,247.30 and 142,087,978.20

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Solution

The fourth proportional to 170,431,498.20, 255,647,247.30 and 142,087,978.20 is: 213,131,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,431,498.20 : 255,647,247.30 = 142,087,978.20 : x
  2. Step 2: Convert to fraction form
    170,431,498.20/255,647,247.30 = 142,087,978.20/x
  3. Step 3: Cross multiply
    170,431,498.20x = 255,647,247.30 × 142,087,978.20
  4. Step 4: Simplify right side
    170,431,498.20x = 36,324,400,501,252,408
  5. Step 5: Solve for x
    x = 36,324,400,501,252,408/170,431,498.20
  6. Step 6: Final answer
    x = 213,131,967.30

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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.