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Finding the Third Proportional to 8,619,854 and 12,906,039

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Solution

The third proportional to 8,619,854 and 12,906,039 is: 19,323,510.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619,854 : 12,906,039 = 12,906,039 : x
  2. Step 2: Convert to fraction form
    8,619,854/12,906,039 = 12,906,039/x
  3. Step 3: Cross multiply
    8,619,854x = 12,906,039 × 12,906,039
  4. Step 4: Simplify right side
    8,619,854x = 166,565,842,669,521
  5. Step 5: Solve for x
    x = 166,565,842,669,521/8,619,854
  6. Step 6: Final answer
    x = 19,323,510.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.