Home / 202,133,778.89-278,945,455.29-109,314,286.70

Finding the Fourth Proportional to 202,133,778.89, 278,945,455.29 and 109,314,286.70

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Solution

The fourth proportional to 202,133,778.89, 278,945,455.29 and 109,314,286.70 is: 150,854,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,133,778.89 : 278,945,455.29 = 109,314,286.70 : x
  2. Step 2: Convert to fraction form
    202,133,778.89/278,945,455.29 = 109,314,286.70/x
  3. Step 3: Cross multiply
    202,133,778.89x = 278,945,455.29 × 109,314,286.70
  4. Step 4: Simplify right side
    202,133,778.89x = 30,492,723,473,233,096
  5. Step 5: Solve for x
    x = 30,492,723,473,233,096/202,133,778.89
  6. Step 6: Final answer
    x = 150,854,170.15

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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.