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Finding the Third Proportional to 39,125,928 and 85,810,128

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Solution

The third proportional to 39,125,928 and 85,810,128 is: 188,196,892.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,125,928 : 85,810,128 = 85,810,128 : x
  2. Step 2: Convert to fraction form
    39,125,928/85,810,128 = 85,810,128/x
  3. Step 3: Cross multiply
    39,125,928x = 85,810,128 × 85,810,128
  4. Step 4: Simplify right side
    39,125,928x = 7,363,378,067,376,384
  5. Step 5: Solve for x
    x = 7,363,378,067,376,384/39,125,928
  6. Step 6: Final answer
    x = 188,196,892.54

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.