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Finding the Third Proportional to 8,505,218 and 18,190,660

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Solution

The third proportional to 8,505,218 and 18,190,660 is: 38,905,541.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505,218 : 18,190,660 = 18,190,660 : x
  2. Step 2: Convert to fraction form
    8,505,218/18,190,660 = 18,190,660/x
  3. Step 3: Cross multiply
    8,505,218x = 18,190,660 × 18,190,660
  4. Step 4: Simplify right side
    8,505,218x = 330,900,111,235,600
  5. Step 5: Solve for x
    x = 330,900,111,235,600/8,505,218
  6. Step 6: Final answer
    x = 38,905,541.43

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.