Home / 20,440,067.10-30,660,100.65-15,905,103.90

Finding the Fourth Proportional to 20,440,067.10, 30,660,100.65 and 15,905,103.90

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Solution

The fourth proportional to 20,440,067.10, 30,660,100.65 and 15,905,103.90 is: 23,857,655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440,067.10 : 30,660,100.65 = 15,905,103.90 : x
  2. Step 2: Convert to fraction form
    20,440,067.10/30,660,100.65 = 15,905,103.90/x
  3. Step 3: Cross multiply
    20,440,067.10x = 30,660,100.65 × 15,905,103.90
  4. Step 4: Simplify right side
    20,440,067.10x = 487,652,086,422,707.50
  5. Step 5: Solve for x
    x = 487,652,086,422,707.50/20,440,067.10
  6. Step 6: Final answer
    x = 23,857,655.85

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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.