Home / 328,704,759.20-493,057,138.80-158,835,447.20

Finding the Fourth Proportional to 328,704,759.20, 493,057,138.80 and 158,835,447.20

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Solution

The fourth proportional to 328,704,759.20, 493,057,138.80 and 158,835,447.20 is: 238,253,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,704,759.20 : 493,057,138.80 = 158,835,447.20 : x
  2. Step 2: Convert to fraction form
    328,704,759.20/493,057,138.80 = 158,835,447.20/x
  3. Step 3: Cross multiply
    328,704,759.20x = 493,057,138.80 × 158,835,447.20
  4. Step 4: Simplify right side
    328,704,759.20x = 78,314,951,136,450,464
  5. Step 5: Solve for x
    x = 78,314,951,136,450,464/328,704,759.20
  6. Step 6: Final answer
    x = 238,253,170.80

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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.