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Finding the Third Proportional to 12,922,312 and 20,006,580

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Solution

The third proportional to 12,922,312 and 20,006,580 is: 30,974,584.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922,312 : 20,006,580 = 20,006,580 : x
  2. Step 2: Convert to fraction form
    12,922,312/20,006,580 = 20,006,580/x
  3. Step 3: Cross multiply
    12,922,312x = 20,006,580 × 20,006,580
  4. Step 4: Simplify right side
    12,922,312x = 400,263,243,296,400
  5. Step 5: Solve for x
    x = 400,263,243,296,400/12,922,312
  6. Step 6: Final answer
    x = 30,974,584.37

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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.