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Finding the Third Proportional to 3,131,281.13 and 4,848,432.75

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Solution

The third proportional to 3,131,281.13 and 4,848,432.75 is: 7,507,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,281.13 : 4,848,432.75 = 4,848,432.75 : x
  2. Step 2: Convert to fraction form
    3,131,281.13/4,848,432.75 = 4,848,432.75/x
  3. Step 3: Cross multiply
    3,131,281.13x = 4,848,432.75 × 4,848,432.75
  4. Step 4: Simplify right side
    3,131,281.13x = 23,507,300,131,272.56
  5. Step 5: Solve for x
    x = 23,507,300,131,272.56/3,131,281.13
  6. Step 6: Final answer
    x = 7,507,246.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.