Home / 3,120,749.64-4,680,789.12-2,116,318.86

Finding the Fourth Proportional to 3,120,749.64, 4,680,789.12 and 2,116,318.86

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Solution

The fourth proportional to 3,120,749.64, 4,680,789.12 and 2,116,318.86 is: 3,174,250.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,749.64 : 4,680,789.12 = 2,116,318.86 : x
  2. Step 2: Convert to fraction form
    3,120,749.64/4,680,789.12 = 2,116,318.86/x
  3. Step 3: Cross multiply
    3,120,749.64x = 4,680,789.12 × 2,116,318.86
  4. Step 4: Simplify right side
    3,120,749.64x = 9,906,042,294,338.80
  5. Step 5: Solve for x
    x = 9,906,042,294,338.80/3,120,749.64
  6. Step 6: Final answer
    x = 3,174,250.88

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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.