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Finding the Third Proportional to 20,454,490 and 45,449,306

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Solution

The third proportional to 20,454,490 and 45,449,306 is: 100,987,089.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454,490 : 45,449,306 = 45,449,306 : x
  2. Step 2: Convert to fraction form
    20,454,490/45,449,306 = 45,449,306/x
  3. Step 3: Cross multiply
    20,454,490x = 45,449,306 × 45,449,306
  4. Step 4: Simplify right side
    20,454,490x = 2,065,639,415,881,636
  5. Step 5: Solve for x
    x = 2,065,639,415,881,636/20,454,490
  6. Step 6: Final answer
    x = 100,987,089.67

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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.