Home / 18,773,768.72-28,172,499.79-7,991,052.27

Finding the Fourth Proportional to 18,773,768.72, 28,172,499.79 and 7,991,052.27

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Solution

The fourth proportional to 18,773,768.72, 28,172,499.79 and 7,991,052.27 is: 11,991,620.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773,768.72 : 28,172,499.79 = 7,991,052.27 : x
  2. Step 2: Convert to fraction form
    18,773,768.72/28,172,499.79 = 7,991,052.27/x
  3. Step 3: Cross multiply
    18,773,768.72x = 28,172,499.79 × 7,991,052.27
  4. Step 4: Simplify right side
    18,773,768.72x = 225,127,918,287,804.78
  5. Step 5: Solve for x
    x = 225,127,918,287,804.78/18,773,768.72
  6. Step 6: Final answer
    x = 11,991,620.95

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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.