Home / 13,646,420.86-20,479,508.20-5,338,449.82

Finding the Fourth Proportional to 13,646,420.86, 20,479,508.20 and 5,338,449.82

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Solution

The fourth proportional to 13,646,420.86, 20,479,508.20 and 5,338,449.82 is: 8,011,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646,420.86 : 20,479,508.20 = 5,338,449.82 : x
  2. Step 2: Convert to fraction form
    13,646,420.86/20,479,508.20 = 5,338,449.82/x
  3. Step 3: Cross multiply
    13,646,420.86x = 20,479,508.20 × 5,338,449.82
  4. Step 4: Simplify right side
    13,646,420.86x = 109,328,826,863,978.53
  5. Step 5: Solve for x
    x = 109,328,826,863,978.53/13,646,420.86
  6. Step 6: Final answer
    x = 8,011,538.56

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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.