Home / 13,458,538.20-20,187,807.30-11,917,359.30

Finding the Fourth Proportional to 13,458,538.20, 20,187,807.30 and 11,917,359.30

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Solution

The fourth proportional to 13,458,538.20, 20,187,807.30 and 11,917,359.30 is: 17,876,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458,538.20 : 20,187,807.30 = 11,917,359.30 : x
  2. Step 2: Convert to fraction form
    13,458,538.20/20,187,807.30 = 11,917,359.30/x
  3. Step 3: Cross multiply
    13,458,538.20x = 20,187,807.30 × 11,917,359.30
  4. Step 4: Simplify right side
    13,458,538.20x = 240,585,353,073,262.91
  5. Step 5: Solve for x
    x = 240,585,353,073,262.91/13,458,538.20
  6. Step 6: Final answer
    x = 17,876,038.95

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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.