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Finding the Third Proportional to 128,337,777 and 277,130,682

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Solution

The third proportional to 128,337,777 and 277,130,682 is: 598,431,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,337,777 : 277,130,682 = 277,130,682 : x
  2. Step 2: Convert to fraction form
    128,337,777/277,130,682 = 277,130,682/x
  3. Step 3: Cross multiply
    128,337,777x = 277,130,682 × 277,130,682
  4. Step 4: Simplify right side
    128,337,777x = 76,801,414,905,785,120
  5. Step 5: Solve for x
    x = 76,801,414,905,785,120/128,337,777
  6. Step 6: Final answer
    x = 598,431,862.40

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.