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Finding the Third Proportional to 20,861,894 and 42,313,354

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Solution

The third proportional to 20,861,894 and 42,313,354 is: 85,822,501.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,861,894 : 42,313,354 = 42,313,354 : x
  2. Step 2: Convert to fraction form
    20,861,894/42,313,354 = 42,313,354/x
  3. Step 3: Cross multiply
    20,861,894x = 42,313,354 × 42,313,354
  4. Step 4: Simplify right side
    20,861,894x = 1,790,419,926,729,316
  5. Step 5: Solve for x
    x = 1,790,419,926,729,316/20,861,894
  6. Step 6: Final answer
    x = 85,822,501.39

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.