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Finding the Third Proportional to 8,666,236 and 18,778,808

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Solution

The third proportional to 8,666,236 and 18,778,808 is: 40,691,671.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666,236 : 18,778,808 = 18,778,808 : x
  2. Step 2: Convert to fraction form
    8,666,236/18,778,808 = 18,778,808/x
  3. Step 3: Cross multiply
    8,666,236x = 18,778,808 × 18,778,808
  4. Step 4: Simplify right side
    8,666,236x = 352,643,629,900,864
  5. Step 5: Solve for x
    x = 352,643,629,900,864/8,666,236
  6. Step 6: Final answer
    x = 40,691,671.67

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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.