Home / 656,382,890.82-984,576,003.81-268,205,721.69

Finding the Fourth Proportional to 656,382,890.82, 984,576,003.81 and 268,205,721.69

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Solution

The fourth proportional to 656,382,890.82, 984,576,003.81 and 268,205,721.69 is: 402,309,263.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,382,890.82 : 984,576,003.81 = 268,205,721.69 : x
  2. Step 2: Convert to fraction form
    656,382,890.82/984,576,003.81 = 268,205,721.69/x
  3. Step 3: Cross multiply
    656,382,890.82x = 984,576,003.81 × 268,205,721.69
  4. Step 4: Simplify right side
    656,382,890.82x = 264,068,917,660,517,216
  5. Step 5: Solve for x
    x = 264,068,917,660,517,216/656,382,890.82
  6. Step 6: Final answer
    x = 402,309,263.93

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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.