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Finding the Third Proportional to 18,294,288 and 39,777,100

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Solution

The third proportional to 18,294,288 and 39,777,100 is: 86,486,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294,288 : 39,777,100 = 39,777,100 : x
  2. Step 2: Convert to fraction form
    18,294,288/39,777,100 = 39,777,100/x
  3. Step 3: Cross multiply
    18,294,288x = 39,777,100 × 39,777,100
  4. Step 4: Simplify right side
    18,294,288x = 1,582,217,684,410,000
  5. Step 5: Solve for x
    x = 1,582,217,684,410,000/18,294,288
  6. Step 6: Final answer
    x = 86,486,978.03

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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.