Home / 18,172,698.30-27,259,047.45-15,432,824.70

Finding the Fourth Proportional to 18,172,698.30, 27,259,047.45 and 15,432,824.70

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Solution

The fourth proportional to 18,172,698.30, 27,259,047.45 and 15,432,824.70 is: 23,149,237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,698.30 : 27,259,047.45 = 15,432,824.70 : x
  2. Step 2: Convert to fraction form
    18,172,698.30/27,259,047.45 = 15,432,824.70/x
  3. Step 3: Cross multiply
    18,172,698.30x = 27,259,047.45 × 15,432,824.70
  4. Step 4: Simplify right side
    18,172,698.30x = 420,684,100,784,832
  5. Step 5: Solve for x
    x = 420,684,100,784,832/18,172,698.30
  6. Step 6: Final answer
    x = 23,149,237.05

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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.