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Finding the Third Proportional to 20,211,450 and 31,066,911

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Solution

The third proportional to 20,211,450 and 31,066,911 is: 47,752,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211,450 : 31,066,911 = 31,066,911 : x
  2. Step 2: Convert to fraction form
    20,211,450/31,066,911 = 31,066,911/x
  3. Step 3: Cross multiply
    20,211,450x = 31,066,911 × 31,066,911
  4. Step 4: Simplify right side
    20,211,450x = 965,152,959,081,921
  5. Step 5: Solve for x
    x = 965,152,959,081,921/20,211,450
  6. Step 6: Final answer
    x = 47,752,781.67

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.