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Finding the Third Proportional to 12,118,716 and 18,135,136

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Solution

The third proportional to 12,118,716 and 18,135,136 is: 27,138,449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118,716 : 18,135,136 = 18,135,136 : x
  2. Step 2: Convert to fraction form
    12,118,716/18,135,136 = 18,135,136/x
  3. Step 3: Cross multiply
    12,118,716x = 18,135,136 × 18,135,136
  4. Step 4: Simplify right side
    12,118,716x = 328,883,157,738,496
  5. Step 5: Solve for x
    x = 328,883,157,738,496/12,118,716
  6. Step 6: Final answer
    x = 27,138,449.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.