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Finding the Third Proportional to 18,773,968.50 and 38,986,778.25

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Solution

The third proportional to 18,773,968.50 and 38,986,778.25 is: 80,961,512.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773,968.50 : 38,986,778.25 = 38,986,778.25 : x
  2. Step 2: Convert to fraction form
    18,773,968.50/38,986,778.25 = 38,986,778.25/x
  3. Step 3: Cross multiply
    18,773,968.50x = 38,986,778.25 × 38,986,778.25
  4. Step 4: Simplify right side
    18,773,968.50x = 1,519,968,878,314,673
  5. Step 5: Solve for x
    x = 1,519,968,878,314,673/18,773,968.50
  6. Step 6: Final answer
    x = 80,961,512.12

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.