Home / 12,126,736.20-18,190,104.30-11,648,439.30

Finding the Fourth Proportional to 12,126,736.20, 18,190,104.30 and 11,648,439.30

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Solution

The fourth proportional to 12,126,736.20, 18,190,104.30 and 11,648,439.30 is: 17,472,658.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126,736.20 : 18,190,104.30 = 11,648,439.30 : x
  2. Step 2: Convert to fraction form
    12,126,736.20/18,190,104.30 = 11,648,439.30/x
  3. Step 3: Cross multiply
    12,126,736.20x = 18,190,104.30 × 11,648,439.30
  4. Step 4: Simplify right side
    12,126,736.20x = 211,886,325,799,219
  5. Step 5: Solve for x
    x = 211,886,325,799,219/12,126,736.20
  6. Step 6: Final answer
    x = 17,472,658.95

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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.