Home / 874,192,972.80-1,311,121,497.60-260,797,209.60

Finding the Fourth Proportional to 874,192,972.80, 1,311,121,497.60 and 260,797,209.60

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Solution

The fourth proportional to 874,192,972.80, 1,311,121,497.60 and 260,797,209.60 is: 391,145,706.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,192,972.80 : 1,311,121,497.60 = 260,797,209.60 : x
  2. Step 2: Convert to fraction form
    874,192,972.80/1,311,121,497.60 = 260,797,209.60/x
  3. Step 3: Cross multiply
    874,192,972.80x = 1,311,121,497.60 × 260,797,209.60
  4. Step 4: Simplify right side
    874,192,972.80x = 341,936,828,020,653,056
  5. Step 5: Solve for x
    x = 341,936,828,020,653,056/874,192,972.80
  6. Step 6: Final answer
    x = 391,145,706.57

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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.