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Finding the Third Proportional to 128,956,738.50 and 283,247,037

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Solution

The third proportional to 128,956,738.50 and 283,247,037 is: 622,137,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,956,738.50 : 283,247,037 = 283,247,037 : x
  2. Step 2: Convert to fraction form
    128,956,738.50/283,247,037 = 283,247,037/x
  3. Step 3: Cross multiply
    128,956,738.50x = 283,247,037 × 283,247,037
  4. Step 4: Simplify right side
    128,956,738.50x = 80,228,883,969,279,376
  5. Step 5: Solve for x
    x = 80,228,883,969,279,376/128,956,738.50
  6. Step 6: Final answer
    x = 622,137,973.58

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.