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Finding the Third Proportional to 12,809,760 and 28,138,944

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Solution

The third proportional to 12,809,760 and 28,138,944 is: 61,812,256.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809,760 : 28,138,944 = 28,138,944 : x
  2. Step 2: Convert to fraction form
    12,809,760/28,138,944 = 28,138,944/x
  3. Step 3: Cross multiply
    12,809,760x = 28,138,944 × 28,138,944
  4. Step 4: Simplify right side
    12,809,760x = 791,800,169,435,136
  5. Step 5: Solve for x
    x = 791,800,169,435,136/12,809,760
  6. Step 6: Final answer
    x = 61,812,256.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.