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Finding the Third Proportional to 18,139,588 and 39,467,708

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Solution

The third proportional to 18,139,588 and 39,467,708 is: 85,872,952.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,588 : 39,467,708 = 39,467,708 : x
  2. Step 2: Convert to fraction form
    18,139,588/39,467,708 = 39,467,708/x
  3. Step 3: Cross multiply
    18,139,588x = 39,467,708 × 39,467,708
  4. Step 4: Simplify right side
    18,139,588x = 1,557,699,974,773,264
  5. Step 5: Solve for x
    x = 1,557,699,974,773,264/18,139,588
  6. Step 6: Final answer
    x = 85,872,952.28

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.