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Finding the Third Proportional to 91,005,880 and 128,770,512

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Solution

The third proportional to 91,005,880 and 128,770,512 is: 182,206,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,005,880 : 128,770,512 = 128,770,512 : x
  2. Step 2: Convert to fraction form
    91,005,880/128,770,512 = 128,770,512/x
  3. Step 3: Cross multiply
    91,005,880x = 128,770,512 × 128,770,512
  4. Step 4: Simplify right side
    91,005,880x = 16,581,844,760,742,144
  5. Step 5: Solve for x
    x = 16,581,844,760,742,144/91,005,880
  6. Step 6: Final answer
    x = 182,206,300.96

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.