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Finding the Third Proportional to 8,424,145 and 18,193,210

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Solution

The third proportional to 8,424,145 and 18,193,210 is: 39,290,977.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424,145 : 18,193,210 = 18,193,210 : x
  2. Step 2: Convert to fraction form
    8,424,145/18,193,210 = 18,193,210/x
  3. Step 3: Cross multiply
    8,424,145x = 18,193,210 × 18,193,210
  4. Step 4: Simplify right side
    8,424,145x = 330,992,890,104,100
  5. Step 5: Solve for x
    x = 330,992,890,104,100/8,424,145
  6. Step 6: Final answer
    x = 39,290,977.32

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.