Home / 313,424,272.40-470,136,408.60-279,981,251.60

Finding the Fourth Proportional to 313,424,272.40, 470,136,408.60 and 279,981,251.60

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Solution

The fourth proportional to 313,424,272.40, 470,136,408.60 and 279,981,251.60 is: 419,971,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,424,272.40 : 470,136,408.60 = 279,981,251.60 : x
  2. Step 2: Convert to fraction form
    313,424,272.40/470,136,408.60 = 279,981,251.60/x
  3. Step 3: Cross multiply
    313,424,272.40x = 470,136,408.60 × 279,981,251.60
  4. Step 4: Simplify right side
    313,424,272.40x = 131,629,380,102,557,024
  5. Step 5: Solve for x
    x = 131,629,380,102,557,024/313,424,272.40
  6. Step 6: Final answer
    x = 419,971,877.40

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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.