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Finding the Third Proportional to 8,666,216 and 18,778,768

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Solution

The third proportional to 8,666,216 and 18,778,768 is: 40,691,592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666,216 : 18,778,768 = 18,778,768 : x
  2. Step 2: Convert to fraction form
    8,666,216/18,778,768 = 18,778,768/x
  3. Step 3: Cross multiply
    8,666,216x = 18,778,768 × 18,778,768
  4. Step 4: Simplify right side
    8,666,216x = 352,642,127,597,824
  5. Step 5: Solve for x
    x = 352,642,127,597,824/8,666,216
  6. Step 6: Final answer
    x = 40,691,592.22

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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.