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Finding the Third Proportional to 12,639,969 and 19,092,789

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Solution

The third proportional to 12,639,969 and 19,092,789 is: 28,839,832.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639,969 : 19,092,789 = 19,092,789 : x
  2. Step 2: Convert to fraction form
    12,639,969/19,092,789 = 19,092,789/x
  3. Step 3: Cross multiply
    12,639,969x = 19,092,789 × 19,092,789
  4. Step 4: Simplify right side
    12,639,969x = 364,534,591,798,521
  5. Step 5: Solve for x
    x = 364,534,591,798,521/12,639,969
  6. Step 6: Final answer
    x = 28,839,832.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.