Home / 202,133,778.39-278,945,454.60-109,314,286.20

Finding the Fourth Proportional to 202,133,778.39, 278,945,454.60 and 109,314,286.20

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Solution

The fourth proportional to 202,133,778.39, 278,945,454.60 and 109,314,286.20 is: 150,854,169.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,133,778.39 : 278,945,454.60 = 109,314,286.20 : x
  2. Step 2: Convert to fraction form
    202,133,778.39/278,945,454.60 = 109,314,286.20/x
  3. Step 3: Cross multiply
    202,133,778.39x = 278,945,454.60 × 109,314,286.20
  4. Step 4: Simplify right side
    202,133,778.39x = 30,492,723,258,333,508
  5. Step 5: Solve for x
    x = 30,492,723,258,333,508/202,133,778.39
  6. Step 6: Final answer
    x = 150,854,169.46

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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.