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Finding the Third Proportional to 12,929,378 and 19,281,958

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Solution

The third proportional to 12,929,378 and 19,281,958 is: 28,755,745.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929,378 : 19,281,958 = 19,281,958 : x
  2. Step 2: Convert to fraction form
    12,929,378/19,281,958 = 19,281,958/x
  3. Step 3: Cross multiply
    12,929,378x = 19,281,958 × 19,281,958
  4. Step 4: Simplify right side
    12,929,378x = 371,793,904,313,764
  5. Step 5: Solve for x
    x = 371,793,904,313,764/12,929,378
  6. Step 6: Final answer
    x = 28,755,745.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.