Home / 85,279,408.80-127,928,073.96-27,776,157.72

Finding the Fourth Proportional to 85,279,408.80, 127,928,073.96 and 27,776,157.72

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Solution

The fourth proportional to 85,279,408.80, 127,928,073.96 and 27,776,157.72 is: 41,667,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,279,408.80 : 127,928,073.96 = 27,776,157.72 : x
  2. Step 2: Convert to fraction form
    85,279,408.80/127,928,073.96 = 27,776,157.72/x
  3. Step 3: Cross multiply
    85,279,408.80x = 127,928,073.96 × 27,776,157.72
  4. Step 4: Simplify right side
    85,279,408.80x = 3,553,350,359,128,784.50
  5. Step 5: Solve for x
    x = 3,553,350,359,128,784.50/85,279,408.80
  6. Step 6: Final answer
    x = 41,667,155.17

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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.