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Finding the Third Proportional to 128,509,337 and 195,777,134

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Solution

The third proportional to 128,509,337 and 195,777,134 is: 298,256,041.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,509,337 : 195,777,134 = 195,777,134 : x
  2. Step 2: Convert to fraction form
    128,509,337/195,777,134 = 195,777,134/x
  3. Step 3: Cross multiply
    128,509,337x = 195,777,134 × 195,777,134
  4. Step 4: Simplify right side
    128,509,337x = 38,328,686,197,253,952
  5. Step 5: Solve for x
    x = 38,328,686,197,253,952/128,509,337
  6. Step 6: Final answer
    x = 298,256,041.87

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.