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Finding the Third Proportional to 39,921,362 and 86,618,608

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Solution

The third proportional to 39,921,362 and 86,618,608 is: 187,939,060.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921,362 : 86,618,608 = 86,618,608 : x
  2. Step 2: Convert to fraction form
    39,921,362/86,618,608 = 86,618,608/x
  3. Step 3: Cross multiply
    39,921,362x = 86,618,608 × 86,618,608
  4. Step 4: Simplify right side
    39,921,362x = 7,502,783,251,857,664
  5. Step 5: Solve for x
    x = 7,502,783,251,857,664/39,921,362
  6. Step 6: Final answer
    x = 187,939,060.09

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.