Home / 20,631,167.37-28,471,651.86-11,338,568.83

Finding the Fourth Proportional to 20,631,167.37, 28,471,651.86 and 11,338,568.83

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Solution

The fourth proportional to 20,631,167.37, 28,471,651.86 and 11,338,568.83 is: 15,647,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631,167.37 : 28,471,651.86 = 11,338,568.83 : x
  2. Step 2: Convert to fraction form
    20,631,167.37/28,471,651.86 = 11,338,568.83/x
  3. Step 3: Cross multiply
    20,631,167.37x = 28,471,651.86 × 11,338,568.83
  4. Step 4: Simplify right side
    20,631,167.37x = 322,827,784,119,356.38
  5. Step 5: Solve for x
    x = 322,827,784,119,356.38/20,631,167.37
  6. Step 6: Final answer
    x = 15,647,577.20

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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.