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Finding the Third Proportional to 16,899,978 and 36,493,980

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Solution

The third proportional to 16,899,978 and 36,493,980 is: 78,805,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,899,978 : 36,493,980 = 36,493,980 : x
  2. Step 2: Convert to fraction form
    16,899,978/36,493,980 = 36,493,980/x
  3. Step 3: Cross multiply
    16,899,978x = 36,493,980 × 36,493,980
  4. Step 4: Simplify right side
    16,899,978x = 1,331,810,576,240,400
  5. Step 5: Solve for x
    x = 1,331,810,576,240,400/16,899,978
  6. Step 6: Final answer
    x = 78,805,462.13

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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.