Home / 18,172,721.80-27,259,082.70-15,432,848.20

Finding the Fourth Proportional to 18,172,721.80, 27,259,082.70 and 15,432,848.20

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Solution

The fourth proportional to 18,172,721.80, 27,259,082.70 and 15,432,848.20 is: 23,149,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,721.80 : 27,259,082.70 = 15,432,848.20 : x
  2. Step 2: Convert to fraction form
    18,172,721.80/27,259,082.70 = 15,432,848.20/x
  3. Step 3: Cross multiply
    18,172,721.80x = 27,259,082.70 × 15,432,848.20
  4. Step 4: Simplify right side
    18,172,721.80x = 420,685,285,380,346.12
  5. Step 5: Solve for x
    x = 420,685,285,380,346.12/18,172,721.80
  6. Step 6: Final answer
    x = 23,149,272.30

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1.5x scale

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.