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Finding the Third Proportional to 4,200,912 and 8,555,913

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Solution

The third proportional to 4,200,912 and 8,555,913 is: 17,425,655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200,912 : 8,555,913 = 8,555,913 : x
  2. Step 2: Convert to fraction form
    4,200,912/8,555,913 = 8,555,913/x
  3. Step 3: Cross multiply
    4,200,912x = 8,555,913 × 8,555,913
  4. Step 4: Simplify right side
    4,200,912x = 73,203,647,263,569
  5. Step 5: Solve for x
    x = 73,203,647,263,569/4,200,912
  6. Step 6: Final answer
    x = 17,425,655.97

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.