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Finding the Third Proportional to 18,747,040 and 38,986,748

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Solution

The third proportional to 18,747,040 and 38,986,748 is: 81,077,680.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747,040 : 38,986,748 = 38,986,748 : x
  2. Step 2: Convert to fraction form
    18,747,040/38,986,748 = 38,986,748/x
  3. Step 3: Cross multiply
    18,747,040x = 38,986,748 × 38,986,748
  4. Step 4: Simplify right side
    18,747,040x = 1,519,966,519,615,504
  5. Step 5: Solve for x
    x = 1,519,966,519,615,504/18,747,040
  6. Step 6: Final answer
    x = 81,077,680.51

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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.