Home / 12,285,352.20-18,428,028.30-12,125,919.90

Finding the Fourth Proportional to 12,285,352.20, 18,428,028.30 and 12,125,919.90

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Solution

The fourth proportional to 12,285,352.20, 18,428,028.30 and 12,125,919.90 is: 18,188,879.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285,352.20 : 18,428,028.30 = 12,125,919.90 : x
  2. Step 2: Convert to fraction form
    12,285,352.20/18,428,028.30 = 12,125,919.90/x
  3. Step 3: Cross multiply
    12,285,352.20x = 18,428,028.30 × 12,125,919.90
  4. Step 4: Simplify right side
    12,285,352.20x = 223,456,795,080,733.19
  5. Step 5: Solve for x
    x = 223,456,795,080,733.19/12,285,352.20
  6. Step 6: Final answer
    x = 18,188,879.85

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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.