Home / 74,451,015.20-111,456,073.20-55,366,378.40

Finding the Fourth Proportional to 74,451,015.20, 111,456,073.20 and 55,366,378.40

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Solution

The fourth proportional to 74,451,015.20, 111,456,073.20 and 55,366,378.40 is: 82,885,627.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,451,015.20 : 111,456,073.20 = 55,366,378.40 : x
  2. Step 2: Convert to fraction form
    74,451,015.20/111,456,073.20 = 55,366,378.40/x
  3. Step 3: Cross multiply
    74,451,015.20x = 111,456,073.20 × 55,366,378.40
  4. Step 4: Simplify right side
    74,451,015.20x = 6,170,919,123,769,299
  5. Step 5: Solve for x
    x = 6,170,919,123,769,299/74,451,015.20
  6. Step 6: Final answer
    x = 82,885,627.65

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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.