Home / 170,356,891.20-255,535,336.80-79,489,665.60

Finding the Fourth Proportional to 170,356,891.20, 255,535,336.80 and 79,489,665.60

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Solution

The fourth proportional to 170,356,891.20, 255,535,336.80 and 79,489,665.60 is: 119,234,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,356,891.20 : 255,535,336.80 = 79,489,665.60 : x
  2. Step 2: Convert to fraction form
    170,356,891.20/255,535,336.80 = 79,489,665.60/x
  3. Step 3: Cross multiply
    170,356,891.20x = 255,535,336.80 × 79,489,665.60
  4. Step 4: Simplify right side
    170,356,891.20x = 20,312,418,471,215,372
  5. Step 5: Solve for x
    x = 20,312,418,471,215,372/170,356,891.20
  6. Step 6: Final answer
    x = 119,234,498.40

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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.