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Finding the Third Proportional to 8,179,947 and 12,439,888.88

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Solution

The third proportional to 8,179,947 and 12,439,888.88 is: 18,918,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179,947 : 12,439,888.88 = 12,439,888.88 : x
  2. Step 2: Convert to fraction form
    8,179,947/12,439,888.88 = 12,439,888.88/x
  3. Step 3: Cross multiply
    8,179,947x = 12,439,888.88 × 12,439,888.88
  4. Step 4: Simplify right side
    8,179,947x = 154,750,835,222,348.75
  5. Step 5: Solve for x
    x = 154,750,835,222,348.75/8,179,947
  6. Step 6: Final answer
    x = 18,918,317.59

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.