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Finding the Third Proportional to 12,390,869 and 25,800,015

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Solution

The third proportional to 12,390,869 and 25,800,015 is: 53,720,265.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,869 : 25,800,015 = 25,800,015 : x
  2. Step 2: Convert to fraction form
    12,390,869/25,800,015 = 25,800,015/x
  3. Step 3: Cross multiply
    12,390,869x = 25,800,015 × 25,800,015
  4. Step 4: Simplify right side
    12,390,869x = 665,640,774,000,225
  5. Step 5: Solve for x
    x = 665,640,774,000,225/12,390,869
  6. Step 6: Final answer
    x = 53,720,265.62

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.