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Finding the Third Proportional to 12,981,960,540 and 19,396,520,485

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Solution

The third proportional to 12,981,960,540 and 19,396,520,485 is: 28,980,600,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,981,960,540 : 19,396,520,485 = 19,396,520,485 : x
  2. Step 2: Convert to fraction form
    12,981,960,540/19,396,520,485 = 19,396,520,485/x
  3. Step 3: Cross multiply
    12,981,960,540x = 19,396,520,485 × 19,396,520,485
  4. Step 4: Simplify right side
    12,981,960,540x = 376,225,006,925,024,657,408
  5. Step 5: Solve for x
    x = 376,225,006,925,024,657,408/12,981,960,540
  6. Step 6: Final answer
    x = 28,980,600,100.10

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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.