Home / 18,172,906.20-27,259,359.30-13,071,072.60

Finding the Fourth Proportional to 18,172,906.20, 27,259,359.30 and 13,071,072.60

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Solution

The fourth proportional to 18,172,906.20, 27,259,359.30 and 13,071,072.60 is: 19,606,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,906.20 : 27,259,359.30 = 13,071,072.60 : x
  2. Step 2: Convert to fraction form
    18,172,906.20/27,259,359.30 = 13,071,072.60/x
  3. Step 3: Cross multiply
    18,172,906.20x = 27,259,359.30 × 13,071,072.60
  4. Step 4: Simplify right side
    18,172,906.20x = 356,309,064,439,785.19
  5. Step 5: Solve for x
    x = 356,309,064,439,785.19/18,172,906.20
  6. Step 6: Final answer
    x = 19,606,608.90

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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.