Home / 839,484,659.80-1,259,388,390.30-321,874,733.80

Finding the Fourth Proportional to 839,484,659.80, 1,259,388,390.30 and 321,874,733.80

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Solution

The fourth proportional to 839,484,659.80, 1,259,388,390.30 and 321,874,733.80 is: 482,873,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,484,659.80 : 1,259,388,390.30 = 321,874,733.80 : x
  2. Step 2: Convert to fraction form
    839,484,659.80/1,259,388,390.30 = 321,874,733.80/x
  3. Step 3: Cross multiply
    839,484,659.80x = 1,259,388,390.30 × 321,874,733.80
  4. Step 4: Simplify right side
    839,484,659.80x = 405,365,302,878,622,976
  5. Step 5: Solve for x
    x = 405,365,302,878,622,976/839,484,659.80
  6. Step 6: Final answer
    x = 482,873,984.83

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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.