Home / 839,484,682.80-1,259,388,424.80-321,874,756.80

Finding the Fourth Proportional to 839,484,682.80, 1,259,388,424.80 and 321,874,756.80

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Solution

The fourth proportional to 839,484,682.80, 1,259,388,424.80 and 321,874,756.80 is: 482,874,019.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,484,682.80 : 1,259,388,424.80 = 321,874,756.80 : x
  2. Step 2: Convert to fraction form
    839,484,682.80/1,259,388,424.80 = 321,874,756.80/x
  3. Step 3: Cross multiply
    839,484,682.80x = 1,259,388,424.80 × 321,874,756.80
  4. Step 4: Simplify right side
    839,484,682.80x = 405,365,342,949,235,072
  5. Step 5: Solve for x
    x = 405,365,342,949,235,072/839,484,682.80
  6. Step 6: Final answer
    x = 482,874,019.33

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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.