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Finding the Third Proportional to 20,489,860 and 43,634,288

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Solution

The third proportional to 20,489,860 and 43,634,288 is: 92,921,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489,860 : 43,634,288 = 43,634,288 : x
  2. Step 2: Convert to fraction form
    20,489,860/43,634,288 = 43,634,288/x
  3. Step 3: Cross multiply
    20,489,860x = 43,634,288 × 43,634,288
  4. Step 4: Simplify right side
    20,489,860x = 1,903,951,089,266,944
  5. Step 5: Solve for x
    x = 1,903,951,089,266,944/20,489,860
  6. Step 6: Final answer
    x = 92,921,625.10

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.