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Finding the Third Proportional to 18,104,378 and 39,043,108

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Solution

The third proportional to 18,104,378 and 39,043,108 is: 84,198,655.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,104,378 : 39,043,108 = 39,043,108 : x
  2. Step 2: Convert to fraction form
    18,104,378/39,043,108 = 39,043,108/x
  3. Step 3: Cross multiply
    18,104,378x = 39,043,108 × 39,043,108
  4. Step 4: Simplify right side
    18,104,378x = 1,524,364,282,299,664
  5. Step 5: Solve for x
    x = 1,524,364,282,299,664/18,104,378
  6. Step 6: Final answer
    x = 84,198,655.28

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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.