Home / 756,682,908.80-1,135,024,363.20-211,424,442.80

Finding the Fourth Proportional to 756,682,908.80, 1,135,024,363.20 and 211,424,442.80

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Solution

The fourth proportional to 756,682,908.80, 1,135,024,363.20 and 211,424,442.80 is: 317,136,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,682,908.80 : 1,135,024,363.20 = 211,424,442.80 : x
  2. Step 2: Convert to fraction form
    756,682,908.80/1,135,024,363.20 = 211,424,442.80/x
  3. Step 3: Cross multiply
    756,682,908.80x = 1,135,024,363.20 × 211,424,442.80
  4. Step 4: Simplify right side
    756,682,908.80x = 239,971,893,553,984,864
  5. Step 5: Solve for x
    x = 239,971,893,553,984,864/756,682,908.80
  6. Step 6: Final answer
    x = 317,136,664.20

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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.