Home / 12,356,788.33-18,538,269.73-8,720,617.88

Finding the Fourth Proportional to 12,356,788.33, 18,538,269.73 and 8,720,617.88

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Solution

The fourth proportional to 12,356,788.33, 18,538,269.73 and 8,720,617.88 is: 13,083,105.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,788.33 : 18,538,269.73 = 8,720,617.88 : x
  2. Step 2: Convert to fraction form
    12,356,788.33/18,538,269.73 = 8,720,617.88/x
  3. Step 3: Cross multiply
    12,356,788.33x = 18,538,269.73 × 8,720,617.88
  4. Step 4: Simplify right side
    12,356,788.33x = 161,665,166,471,700.78
  5. Step 5: Solve for x
    x = 161,665,166,471,700.78/12,356,788.33
  6. Step 6: Final answer
    x = 13,083,105.59

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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.