Home / 5,640,177.78-7,783,455-3,225,729.78

Finding the Fourth Proportional to 5,640,177.78, 7,783,455 and 3,225,729.78

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Solution

The fourth proportional to 5,640,177.78, 7,783,455 and 3,225,729.78 is: 4,451,512.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640,177.78 : 7,783,455 = 3,225,729.78 : x
  2. Step 2: Convert to fraction form
    5,640,177.78/7,783,455 = 3,225,729.78/x
  3. Step 3: Cross multiply
    5,640,177.78x = 7,783,455 × 3,225,729.78
  4. Step 4: Simplify right side
    5,640,177.78x = 25,107,322,584,789.90
  5. Step 5: Solve for x
    x = 25,107,322,584,789.90/5,640,177.78
  6. Step 6: Final answer
    x = 4,451,512.62

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.