Home / 20,667,066.76-31,007,573.70-9,150,961.96

Finding the Fourth Proportional to 20,667,066.76, 31,007,573.70 and 9,150,961.96

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Solution

The fourth proportional to 20,667,066.76, 31,007,573.70 and 9,150,961.96 is: 13,729,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667,066.76 : 31,007,573.70 = 9,150,961.96 : x
  2. Step 2: Convert to fraction form
    20,667,066.76/31,007,573.70 = 9,150,961.96/x
  3. Step 3: Cross multiply
    20,667,066.76x = 31,007,573.70 × 9,150,961.96
  4. Step 4: Simplify right side
    20,667,066.76x = 283,749,127,400,596.50
  5. Step 5: Solve for x
    x = 283,749,127,400,596.50/20,667,066.76
  6. Step 6: Final answer
    x = 13,729,530.69

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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.