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Finding the Third Proportional to 12,933,991 and 20,289,637

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Solution

The third proportional to 12,933,991 and 20,289,637 is: 31,828,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933,991 : 20,289,637 = 20,289,637 : x
  2. Step 2: Convert to fraction form
    12,933,991/20,289,637 = 20,289,637/x
  3. Step 3: Cross multiply
    12,933,991x = 20,289,637 × 20,289,637
  4. Step 4: Simplify right side
    12,933,991x = 411,669,369,591,769
  5. Step 5: Solve for x
    x = 411,669,369,591,769/12,933,991
  6. Step 6: Final answer
    x = 31,828,487.40

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.