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Finding the Third Proportional to 18,266,970 and 40,149,780

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Solution

The third proportional to 18,266,970 and 40,149,780 is: 88,246,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266,970 : 40,149,780 = 40,149,780 : x
  2. Step 2: Convert to fraction form
    18,266,970/40,149,780 = 40,149,780/x
  3. Step 3: Cross multiply
    18,266,970x = 40,149,780 × 40,149,780
  4. Step 4: Simplify right side
    18,266,970x = 1,612,004,834,048,400
  5. Step 5: Solve for x
    x = 1,612,004,834,048,400/18,266,970
  6. Step 6: Final answer
    x = 88,246,974.41

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.