Home / 319,788,007.80-479,682,011.70-268,131,942.60

Finding the Fourth Proportional to 319,788,007.80, 479,682,011.70 and 268,131,942.60

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Solution

The fourth proportional to 319,788,007.80, 479,682,011.70 and 268,131,942.60 is: 402,197,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,788,007.80 : 479,682,011.70 = 268,131,942.60 : x
  2. Step 2: Convert to fraction form
    319,788,007.80/479,682,011.70 = 268,131,942.60/x
  3. Step 3: Cross multiply
    319,788,007.80x = 479,682,011.70 × 268,131,942.60
  4. Step 4: Simplify right side
    319,788,007.80x = 128,618,069,627,396,928
  5. Step 5: Solve for x
    x = 128,618,069,627,396,928/319,788,007.80
  6. Step 6: Final answer
    x = 402,197,913.90

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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.