Home / 258,234,872.66-387,122,914.88-100,631,404.59

Finding the Fourth Proportional to 258,234,872.66, 387,122,914.88 and 100,631,404.59

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Solution

The fourth proportional to 258,234,872.66, 387,122,914.88 and 100,631,404.59 is: 150,857,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,234,872.66 : 387,122,914.88 = 100,631,404.59 : x
  2. Step 2: Convert to fraction form
    258,234,872.66/387,122,914.88 = 100,631,404.59/x
  3. Step 3: Cross multiply
    258,234,872.66x = 387,122,914.88 × 100,631,404.59
  4. Step 4: Simplify right side
    258,234,872.66x = 38,956,722,675,464,896
  5. Step 5: Solve for x
    x = 38,956,722,675,464,896/258,234,872.66
  6. Step 6: Final answer
    x = 150,857,714.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.