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Finding the Third Proportional to 12,888,508,212 and 19,253,386,476

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Solution

The third proportional to 12,888,508,212 and 19,253,386,476 is: 28,761,504,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888,508,212 : 19,253,386,476 = 19,253,386,476 : x
  2. Step 2: Convert to fraction form
    12,888,508,212/19,253,386,476 = 19,253,386,476/x
  3. Step 3: Cross multiply
    12,888,508,212x = 19,253,386,476 × 19,253,386,476
  4. Step 4: Simplify right side
    12,888,508,212x = 370,692,890,794,219,667,456
  5. Step 5: Solve for x
    x = 370,692,890,794,219,667,456/12,888,508,212
  6. Step 6: Final answer
    x = 28,761,504,799.22

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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.