Home / 388,110,466.80-580,822,007.40-355,861,839.60

Finding the Fourth Proportional to 388,110,466.80, 580,822,007.40 and 355,861,839.60

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Solution

The fourth proportional to 388,110,466.80, 580,822,007.40 and 355,861,839.60 is: 532,560,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,110,466.80 : 580,822,007.40 = 355,861,839.60 : x
  2. Step 2: Convert to fraction form
    388,110,466.80/580,822,007.40 = 355,861,839.60/x
  3. Step 3: Cross multiply
    388,110,466.80x = 580,822,007.40 × 355,861,839.60
  4. Step 4: Simplify right side
    388,110,466.80x = 206,692,388,033,528,832
  5. Step 5: Solve for x
    x = 206,692,388,033,528,832/388,110,466.80
  6. Step 6: Final answer
    x = 532,560,715.86

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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.