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Finding the Third Proportional to 12,700,678 and 19,079,628

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Solution

The third proportional to 12,700,678 and 19,079,628 is: 28,662,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700,678 : 19,079,628 = 19,079,628 : x
  2. Step 2: Convert to fraction form
    12,700,678/19,079,628 = 19,079,628/x
  3. Step 3: Cross multiply
    12,700,678x = 19,079,628 × 19,079,628
  4. Step 4: Simplify right side
    12,700,678x = 364,032,204,618,384
  5. Step 5: Solve for x
    x = 364,032,204,618,384/12,700,678
  6. Step 6: Final answer
    x = 28,662,422.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.