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Finding the Third Proportional to 18,819,936 and 40,825,728

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Solution

The third proportional to 18,819,936 and 40,825,728 is: 88,562,472.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819,936 : 40,825,728 = 40,825,728 : x
  2. Step 2: Convert to fraction form
    18,819,936/40,825,728 = 40,825,728/x
  3. Step 3: Cross multiply
    18,819,936x = 40,825,728 × 40,825,728
  4. Step 4: Simplify right side
    18,819,936x = 1,666,740,066,729,984
  5. Step 5: Solve for x
    x = 1,666,740,066,729,984/18,819,936
  6. Step 6: Final answer
    x = 88,562,472.62

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.