Home / 18,372,565.40-27,558,920.31-7,442,961.48

Finding the Fourth Proportional to 18,372,565.40, 27,558,920.31 and 7,442,961.48

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Solution

The fourth proportional to 18,372,565.40, 27,558,920.31 and 7,442,961.48 is: 11,164,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,565.40 : 27,558,920.31 = 7,442,961.48 : x
  2. Step 2: Convert to fraction form
    18,372,565.40/27,558,920.31 = 7,442,961.48/x
  3. Step 3: Cross multiply
    18,372,565.40x = 27,558,920.31 × 7,442,961.48
  4. Step 4: Simplify right side
    18,372,565.40x = 205,119,982,247,429.75
  5. Step 5: Solve for x
    x = 205,119,982,247,429.75/18,372,565.40
  6. Step 6: Final answer
    x = 11,164,471.47

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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.