Home / 18,126,891.28-25,015,742.76-9,867,633.76

Finding the Fourth Proportional to 18,126,891.28, 25,015,742.76 and 9,867,633.76

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Solution

The fourth proportional to 18,126,891.28, 25,015,742.76 and 9,867,633.76 is: 13,617,679.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126,891.28 : 25,015,742.76 = 9,867,633.76 : x
  2. Step 2: Convert to fraction form
    18,126,891.28/25,015,742.76 = 9,867,633.76/x
  3. Step 3: Cross multiply
    18,126,891.28x = 25,015,742.76 × 9,867,633.76
  4. Step 4: Simplify right side
    18,126,891.28x = 246,846,187,790,051.59
  5. Step 5: Solve for x
    x = 246,846,187,790,051.59/18,126,891.28
  6. Step 6: Final answer
    x = 13,617,679.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.