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Finding the Third Proportional to 9,351,560 and 20,147,728

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Solution

The third proportional to 9,351,560 and 20,147,728 is: 43,407,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,351,560 : 20,147,728 = 20,147,728 : x
  2. Step 2: Convert to fraction form
    9,351,560/20,147,728 = 20,147,728/x
  3. Step 3: Cross multiply
    9,351,560x = 20,147,728 × 20,147,728
  4. Step 4: Simplify right side
    9,351,560x = 405,930,943,561,984
  5. Step 5: Solve for x
    x = 405,930,943,561,984/9,351,560
  6. Step 6: Final answer
    x = 43,407,831.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.