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Finding the Third Proportional to 20,997,478 and 43,671,068

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Solution

The third proportional to 20,997,478 and 43,671,068 is: 90,828,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997,478 : 43,671,068 = 43,671,068 : x
  2. Step 2: Convert to fraction form
    20,997,478/43,671,068 = 43,671,068/x
  3. Step 3: Cross multiply
    20,997,478x = 43,671,068 × 43,671,068
  4. Step 4: Simplify right side
    20,997,478x = 1,907,162,180,260,624
  5. Step 5: Solve for x
    x = 1,907,162,180,260,624/20,997,478
  6. Step 6: Final answer
    x = 90,828,154.71

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.