Home / 80,643,679.20-120,888,104.40-26,763,256.80

Finding the Fourth Proportional to 80,643,679.20, 120,888,104.40 and 26,763,256.80

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Solution

The fourth proportional to 80,643,679.20, 120,888,104.40 and 26,763,256.80 is: 40,119,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,643,679.20 : 120,888,104.40 = 26,763,256.80 : x
  2. Step 2: Convert to fraction form
    80,643,679.20/120,888,104.40 = 26,763,256.80/x
  3. Step 3: Cross multiply
    80,643,679.20x = 120,888,104.40 × 26,763,256.80
  4. Step 4: Simplify right side
    80,643,679.20x = 3,235,359,382,122,410
  5. Step 5: Solve for x
    x = 3,235,359,382,122,410/80,643,679.20
  6. Step 6: Final answer
    x = 40,119,193.65

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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.