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Finding the Third Proportional to 8,378,503 and 18,079,640

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Solution

The third proportional to 8,378,503 and 18,079,640 is: 39,013,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378,503 : 18,079,640 = 18,079,640 : x
  2. Step 2: Convert to fraction form
    8,378,503/18,079,640 = 18,079,640/x
  3. Step 3: Cross multiply
    8,378,503x = 18,079,640 × 18,079,640
  4. Step 4: Simplify right side
    8,378,503x = 326,873,382,529,600
  5. Step 5: Solve for x
    x = 326,873,382,529,600/8,378,503
  6. Step 6: Final answer
    x = 39,013,339.56

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.