Home / 20,377,523.72-28,101,681.78-13,037,679.56

Finding the Fourth Proportional to 20,377,523.72, 28,101,681.78 and 13,037,679.56

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Solution

The fourth proportional to 20,377,523.72, 28,101,681.78 and 13,037,679.56 is: 17,979,648.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377,523.72 : 28,101,681.78 = 13,037,679.56 : x
  2. Step 2: Convert to fraction form
    20,377,523.72/28,101,681.78 = 13,037,679.56/x
  3. Step 3: Cross multiply
    20,377,523.72x = 28,101,681.78 × 13,037,679.56
  4. Step 4: Simplify right side
    20,377,523.72x = 366,380,722,144,730.44
  5. Step 5: Solve for x
    x = 366,380,722,144,730.44/20,377,523.72
  6. Step 6: Final answer
    x = 17,979,648.91

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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.