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Finding the Third Proportional to 20,455,449 and 45,450,981

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Solution

The third proportional to 20,455,449 and 45,450,981 is: 100,989,798.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,449 : 45,450,981 = 45,450,981 : x
  2. Step 2: Convert to fraction form
    20,455,449/45,450,981 = 45,450,981/x
  3. Step 3: Cross multiply
    20,455,449x = 45,450,981 × 45,450,981
  4. Step 4: Simplify right side
    20,455,449x = 2,065,791,673,862,361
  5. Step 5: Solve for x
    x = 2,065,791,673,862,361/20,455,449
  6. Step 6: Final answer
    x = 100,989,798.56

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.