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Finding the Third Proportional to 128,530,442 and 283,134,676

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Solution

The third proportional to 128,530,442 and 283,134,676 is: 623,706,287.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,530,442 : 283,134,676 = 283,134,676 : x
  2. Step 2: Convert to fraction form
    128,530,442/283,134,676 = 283,134,676/x
  3. Step 3: Cross multiply
    128,530,442x = 283,134,676 × 283,134,676
  4. Step 4: Simplify right side
    128,530,442x = 80,165,244,753,624,976
  5. Step 5: Solve for x
    x = 80,165,244,753,624,976/128,530,442
  6. Step 6: Final answer
    x = 623,706,287.06

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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.