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Finding the Third Proportional to 18,789,413 and 36,085,834

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Solution

The third proportional to 18,789,413 and 36,085,834 is: 69,304,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789,413 : 36,085,834 = 36,085,834 : x
  2. Step 2: Convert to fraction form
    18,789,413/36,085,834 = 36,085,834/x
  3. Step 3: Cross multiply
    18,789,413x = 36,085,834 × 36,085,834
  4. Step 4: Simplify right side
    18,789,413x = 1,302,187,415,475,556
  5. Step 5: Solve for x
    x = 1,302,187,415,475,556/18,789,413
  6. Step 6: Final answer
    x = 69,304,315.97

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.