Home / 392,787,604.37-589,160,050.49-120,158,371.37

Finding the Fourth Proportional to 392,787,604.37, 589,160,050.49 and 120,158,371.37

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Solution

The fourth proportional to 392,787,604.37, 589,160,050.49 and 120,158,371.37 is: 180,231,023.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,787,604.37 : 589,160,050.49 = 120,158,371.37 : x
  2. Step 2: Convert to fraction form
    392,787,604.37/589,160,050.49 = 120,158,371.37/x
  3. Step 3: Cross multiply
    392,787,604.37x = 589,160,050.49 × 120,158,371.37
  4. Step 4: Simplify right side
    392,787,604.37x = 70,792,512,139,598,776
  5. Step 5: Solve for x
    x = 70,792,512,139,598,776/392,787,604.37
  6. Step 6: Final answer
    x = 180,231,023.98

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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.