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Finding the Third Proportional to 20,899,235 and 45,286,042

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Solution

The third proportional to 20,899,235 and 45,286,042 is: 98,129,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899,235 : 45,286,042 = 45,286,042 : x
  2. Step 2: Convert to fraction form
    20,899,235/45,286,042 = 45,286,042/x
  3. Step 3: Cross multiply
    20,899,235x = 45,286,042 × 45,286,042
  4. Step 4: Simplify right side
    20,899,235x = 2,050,825,600,025,764
  5. Step 5: Solve for x
    x = 2,050,825,600,025,764/20,899,235
  6. Step 6: Final answer
    x = 98,129,218.61

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.