Home / 51,542,047.72-71,128,167.78-28,339,546.60

Finding the Fourth Proportional to 51,542,047.72, 71,128,167.78 and 28,339,546.60

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Solution

The fourth proportional to 51,542,047.72, 71,128,167.78 and 28,339,546.60 is: 39,108,652.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,542,047.72 : 71,128,167.78 = 28,339,546.60 : x
  2. Step 2: Convert to fraction form
    51,542,047.72/71,128,167.78 = 28,339,546.60/x
  3. Step 3: Cross multiply
    51,542,047.72x = 71,128,167.78 × 28,339,546.60
  4. Step 4: Simplify right side
    51,542,047.72x = 2,015,740,025,373,928.75
  5. Step 5: Solve for x
    x = 2,015,740,025,373,928.75/51,542,047.72
  6. Step 6: Final answer
    x = 39,108,652.34

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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.