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Finding the Third Proportional to 20,977,320 and 45,646,296

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Solution

The third proportional to 20,977,320 and 45,646,296 is: 99,325,573.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977,320 : 45,646,296 = 45,646,296 : x
  2. Step 2: Convert to fraction form
    20,977,320/45,646,296 = 45,646,296/x
  3. Step 3: Cross multiply
    20,977,320x = 45,646,296 × 45,646,296
  4. Step 4: Simplify right side
    20,977,320x = 2,083,584,338,519,616
  5. Step 5: Solve for x
    x = 2,083,584,338,519,616/20,977,320
  6. Step 6: Final answer
    x = 99,325,573.45

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.