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Finding the Third Proportional to 20,919,472 and 45,143,728

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Solution

The third proportional to 20,919,472 and 45,143,728 is: 97,419,102.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,919,472 : 45,143,728 = 45,143,728 : x
  2. Step 2: Convert to fraction form
    20,919,472/45,143,728 = 45,143,728/x
  3. Step 3: Cross multiply
    20,919,472x = 45,143,728 × 45,143,728
  4. Step 4: Simplify right side
    20,919,472x = 2,037,956,177,737,984
  5. Step 5: Solve for x
    x = 2,037,956,177,737,984/20,919,472
  6. Step 6: Final answer
    x = 97,419,102.06

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.