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Finding the Third Proportional to 12,821,412 and 18,333,390

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Solution

The third proportional to 12,821,412 and 18,333,390 is: 26,214,990.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821,412 : 18,333,390 = 18,333,390 : x
  2. Step 2: Convert to fraction form
    12,821,412/18,333,390 = 18,333,390/x
  3. Step 3: Cross multiply
    12,821,412x = 18,333,390 × 18,333,390
  4. Step 4: Simplify right side
    12,821,412x = 336,113,188,892,100
  5. Step 5: Solve for x
    x = 336,113,188,892,100/12,821,412
  6. Step 6: Final answer
    x = 26,214,990.12

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These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.