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Finding the Third Proportional to 8,293,623.75 and 12,981,768.75

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Solution

The third proportional to 8,293,623.75 and 12,981,768.75 is: 20,319,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,293,623.75 : 12,981,768.75 = 12,981,768.75 : x
  2. Step 2: Convert to fraction form
    8,293,623.75/12,981,768.75 = 12,981,768.75/x
  3. Step 3: Cross multiply
    8,293,623.75x = 12,981,768.75 × 12,981,768.75
  4. Step 4: Simplify right side
    8,293,623.75x = 168,526,319,878,476.56
  5. Step 5: Solve for x
    x = 168,526,319,878,476.56/8,293,623.75
  6. Step 6: Final answer
    x = 20,319,986.17

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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.