Home / 14,721,422.55-20,315,919.15-8,195,493.12

Finding the Fourth Proportional to 14,721,422.55, 20,315,919.15 and 8,195,493.12

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Solution

The fourth proportional to 14,721,422.55, 20,315,919.15 and 8,195,493.12 is: 11,309,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721,422.55 : 20,315,919.15 = 8,195,493.12 : x
  2. Step 2: Convert to fraction form
    14,721,422.55/20,315,919.15 = 8,195,493.12/x
  3. Step 3: Cross multiply
    14,721,422.55x = 20,315,919.15 × 8,195,493.12
  4. Step 4: Simplify right side
    14,721,422.55x = 166,498,975,620,301.25
  5. Step 5: Solve for x
    x = 166,498,975,620,301.25/14,721,422.55
  6. Step 6: Final answer
    x = 11,309,978.71

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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.