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Finding the Third Proportional to 20,886,771 and 31,930,486

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Solution

The third proportional to 20,886,771 and 31,930,486 is: 48,813,477.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886,771 : 31,930,486 = 31,930,486 : x
  2. Step 2: Convert to fraction form
    20,886,771/31,930,486 = 31,930,486/x
  3. Step 3: Cross multiply
    20,886,771x = 31,930,486 × 31,930,486
  4. Step 4: Simplify right side
    20,886,771x = 1,019,555,936,196,196
  5. Step 5: Solve for x
    x = 1,019,555,936,196,196/20,886,771
  6. Step 6: Final answer
    x = 48,813,477.98

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.