Home / 664,022,969.70-996,034,454.55-388,523,955.30

Finding the Fourth Proportional to 664,022,969.70, 996,034,454.55 and 388,523,955.30

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Solution

The fourth proportional to 664,022,969.70, 996,034,454.55 and 388,523,955.30 is: 582,785,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,022,969.70 : 996,034,454.55 = 388,523,955.30 : x
  2. Step 2: Convert to fraction form
    664,022,969.70/996,034,454.55 = 388,523,955.30/x
  3. Step 3: Cross multiply
    664,022,969.70x = 996,034,454.55 × 388,523,955.30
  4. Step 4: Simplify right side
    664,022,969.70x = 386,983,245,896,844,096
  5. Step 5: Solve for x
    x = 386,983,245,896,844,096/664,022,969.70
  6. Step 6: Final answer
    x = 582,785,932.95

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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.