Home / 310,373,441.37-428,155,059.06-192,854,121.57

Finding the Fourth Proportional to 310,373,441.37, 428,155,059.06 and 192,854,121.57

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Solution

The fourth proportional to 310,373,441.37, 428,155,059.06 and 192,854,121.57 is: 266,039,089.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,373,441.37 : 428,155,059.06 = 192,854,121.57 : x
  2. Step 2: Convert to fraction form
    310,373,441.37/428,155,059.06 = 192,854,121.57/x
  3. Step 3: Cross multiply
    310,373,441.37x = 428,155,059.06 × 192,854,121.57
  4. Step 4: Simplify right side
    310,373,441.37x = 82,571,467,810,767,760
  5. Step 5: Solve for x
    x = 82,571,467,810,767,760/310,373,441.37
  6. Step 6: Final answer
    x = 266,039,089.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.