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Finding the Third Proportional to 20,500,780 and 28,836,930

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Solution

The third proportional to 20,500,780 and 28,836,930 is: 40,562,775.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500,780 : 28,836,930 = 28,836,930 : x
  2. Step 2: Convert to fraction form
    20,500,780/28,836,930 = 28,836,930/x
  3. Step 3: Cross multiply
    20,500,780x = 28,836,930 × 28,836,930
  4. Step 4: Simplify right side
    20,500,780x = 831,568,531,824,900
  5. Step 5: Solve for x
    x = 831,568,531,824,900/20,500,780
  6. Step 6: Final answer
    x = 40,562,775.26

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.