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Finding the Third Proportional to 20,977,308 and 45,646,272

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Solution

The third proportional to 20,977,308 and 45,646,272 is: 99,325,525.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977,308 : 45,646,272 = 45,646,272 : x
  2. Step 2: Convert to fraction form
    20,977,308/45,646,272 = 45,646,272/x
  3. Step 3: Cross multiply
    20,977,308x = 45,646,272 × 45,646,272
  4. Step 4: Simplify right side
    20,977,308x = 2,083,582,147,497,984
  5. Step 5: Solve for x
    x = 2,083,582,147,497,984/20,977,308
  6. Step 6: Final answer
    x = 99,325,525.83

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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.