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Finding the Third Proportional to 91,005,898 and 128,770,555

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Solution

The third proportional to 91,005,898 and 128,770,555 is: 182,206,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,005,898 : 128,770,555 = 128,770,555 : x
  2. Step 2: Convert to fraction form
    91,005,898/128,770,555 = 128,770,555/x
  3. Step 3: Cross multiply
    91,005,898x = 128,770,555 × 128,770,555
  4. Step 4: Simplify right side
    91,005,898x = 16,581,855,835,008,024
  5. Step 5: Solve for x
    x = 16,581,855,835,008,024/91,005,898
  6. Step 6: Final answer
    x = 182,206,386.61

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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.