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Finding the Third Proportional to 12,922,340 and 20,006,620

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Solution

The third proportional to 12,922,340 and 20,006,620 is: 30,974,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922,340 : 20,006,620 = 20,006,620 : x
  2. Step 2: Convert to fraction form
    12,922,340/20,006,620 = 20,006,620/x
  3. Step 3: Cross multiply
    12,922,340x = 20,006,620 × 20,006,620
  4. Step 4: Simplify right side
    12,922,340x = 400,264,843,824,400
  5. Step 5: Solve for x
    x = 400,264,843,824,400/12,922,340
  6. Step 6: Final answer
    x = 30,974,641.11

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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.