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Finding the Third Proportional to 12,311,864 and 18,398,888

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Solution

The third proportional to 12,311,864 and 18,398,888 is: 27,495,355.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311,864 : 18,398,888 = 18,398,888 : x
  2. Step 2: Convert to fraction form
    12,311,864/18,398,888 = 18,398,888/x
  3. Step 3: Cross multiply
    12,311,864x = 18,398,888 × 18,398,888
  4. Step 4: Simplify right side
    12,311,864x = 338,519,079,636,544
  5. Step 5: Solve for x
    x = 338,519,079,636,544/12,311,864
  6. Step 6: Final answer
    x = 27,495,355.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.