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Finding the Third Proportional to 18,017,003 and 27,921,378

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Solution

The third proportional to 18,017,003 and 27,921,378 is: 43,270,423.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,017,003 : 27,921,378 = 27,921,378 : x
  2. Step 2: Convert to fraction form
    18,017,003/27,921,378 = 27,921,378/x
  3. Step 3: Cross multiply
    18,017,003x = 27,921,378 × 27,921,378
  4. Step 4: Simplify right side
    18,017,003x = 779,603,349,418,884
  5. Step 5: Solve for x
    x = 779,603,349,418,884/18,017,003
  6. Step 6: Final answer
    x = 43,270,423.47

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.