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Finding the Third Proportional to 80,705,022 and 128,479,869

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Solution

The third proportional to 80,705,022 and 128,479,869 is: 204,535,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,705,022 : 128,479,869 = 128,479,869 : x
  2. Step 2: Convert to fraction form
    80,705,022/128,479,869 = 128,479,869/x
  3. Step 3: Cross multiply
    80,705,022x = 128,479,869 × 128,479,869
  4. Step 4: Simplify right side
    80,705,022x = 16,507,076,738,257,160
  5. Step 5: Solve for x
    x = 16,507,076,738,257,160/80,705,022
  6. Step 6: Final answer
    x = 204,535,930.10

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.