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Finding the Third Proportional to 12,551,987 and 19,396,017

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Solution

The third proportional to 12,551,987 and 19,396,017 is: 29,971,786.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551,987 : 19,396,017 = 19,396,017 : x
  2. Step 2: Convert to fraction form
    12,551,987/19,396,017 = 19,396,017/x
  3. Step 3: Cross multiply
    12,551,987x = 19,396,017 × 19,396,017
  4. Step 4: Simplify right side
    12,551,987x = 376,205,475,464,289
  5. Step 5: Solve for x
    x = 376,205,475,464,289/12,551,987
  6. Step 6: Final answer
    x = 29,971,786.58

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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.