Home / 80,643,780.20-120,888,255.90-26,763,357.80

Finding the Fourth Proportional to 80,643,780.20, 120,888,255.90 and 26,763,357.80

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Solution

The fourth proportional to 80,643,780.20, 120,888,255.90 and 26,763,357.80 is: 40,119,345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,643,780.20 : 120,888,255.90 = 26,763,357.80 : x
  2. Step 2: Convert to fraction form
    80,643,780.20/120,888,255.90 = 26,763,357.80/x
  3. Step 3: Cross multiply
    80,643,780.20x = 120,888,255.90 × 26,763,357.80
  4. Step 4: Simplify right side
    80,643,780.20x = 3,235,375,646,469,661.50
  5. Step 5: Solve for x
    x = 3,235,375,646,469,661.50/80,643,780.20
  6. Step 6: Final answer
    x = 40,119,345.08

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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.