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Finding the Third Proportional to 7,860,438 and 17,187,190

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Solution

The third proportional to 7,860,438 and 17,187,190 is: 37,580,539.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860,438 : 17,187,190 = 17,187,190 : x
  2. Step 2: Convert to fraction form
    7,860,438/17,187,190 = 17,187,190/x
  3. Step 3: Cross multiply
    7,860,438x = 17,187,190 × 17,187,190
  4. Step 4: Simplify right side
    7,860,438x = 295,399,500,096,100
  5. Step 5: Solve for x
    x = 295,399,500,096,100/7,860,438
  6. Step 6: Final answer
    x = 37,580,539.42

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.