Home / 170,431,565.20-255,647,347.80-142,088,045.20

Finding the Fourth Proportional to 170,431,565.20, 255,647,347.80 and 142,088,045.20

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Solution

The fourth proportional to 170,431,565.20, 255,647,347.80 and 142,088,045.20 is: 213,132,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,431,565.20 : 255,647,347.80 = 142,088,045.20 : x
  2. Step 2: Convert to fraction form
    170,431,565.20/255,647,347.80 = 142,088,045.20/x
  3. Step 3: Cross multiply
    170,431,565.20x = 255,647,347.80 × 142,088,045.20
  4. Step 4: Simplify right side
    170,431,565.20x = 36,324,431,909,466,520
  5. Step 5: Solve for x
    x = 36,324,431,909,466,520/170,431,565.20
  6. Step 6: Final answer
    x = 213,132,067.80

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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.