Home / 77,150,729.92-115,723,286.88-31,112,455.36

Finding the Fourth Proportional to 77,150,729.92, 115,723,286.88 and 31,112,455.36

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Solution

The fourth proportional to 77,150,729.92, 115,723,286.88 and 31,112,455.36 is: 46,667,550.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,150,729.92 : 115,723,286.88 = 31,112,455.36 : x
  2. Step 2: Convert to fraction form
    77,150,729.92/115,723,286.88 = 31,112,455.36/x
  3. Step 3: Cross multiply
    77,150,729.92x = 115,723,286.88 × 31,112,455.36
  4. Step 4: Simplify right side
    77,150,729.92x = 3,600,435,597,166,473.50
  5. Step 5: Solve for x
    x = 3,600,435,597,166,473.50/77,150,729.92
  6. Step 6: Final answer
    x = 46,667,550.66

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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.