Home / 20,589,086.52-28,416,345.48-11,424,681.72

Finding the Fourth Proportional to 20,589,086.52, 28,416,345.48 and 11,424,681.72

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Solution

The fourth proportional to 20,589,086.52, 28,416,345.48 and 11,424,681.72 is: 15,767,950.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589,086.52 : 28,416,345.48 = 11,424,681.72 : x
  2. Step 2: Convert to fraction form
    20,589,086.52/28,416,345.48 = 11,424,681.72/x
  3. Step 3: Cross multiply
    20,589,086.52x = 28,416,345.48 × 11,424,681.72
  4. Step 4: Simplify right side
    20,589,086.52x = 324,647,702,754,560.62
  5. Step 5: Solve for x
    x = 324,647,702,754,560.62/20,589,086.52
  6. Step 6: Final answer
    x = 15,767,950.78

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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.