Home / 12,530,011.20-18,795,016.80-7,491,163.20

Finding the Fourth Proportional to 12,530,011.20, 18,795,016.80 and 7,491,163.20

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Solution

The fourth proportional to 12,530,011.20, 18,795,016.80 and 7,491,163.20 is: 11,236,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530,011.20 : 18,795,016.80 = 7,491,163.20 : x
  2. Step 2: Convert to fraction form
    12,530,011.20/18,795,016.80 = 7,491,163.20/x
  3. Step 3: Cross multiply
    12,530,011.20x = 18,795,016.80 × 7,491,163.20
  4. Step 4: Simplify right side
    12,530,011.20x = 140,796,538,195,541.78
  5. Step 5: Solve for x
    x = 140,796,538,195,541.78/12,530,011.20
  6. Step 6: Final answer
    x = 11,236,744.80

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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.