Home / 203,857,205.70-305,785,808.55-127,416,015.30

Finding the Fourth Proportional to 203,857,205.70, 305,785,808.55 and 127,416,015.30

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Solution

The fourth proportional to 203,857,205.70, 305,785,808.55 and 127,416,015.30 is: 191,124,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,857,205.70 : 305,785,808.55 = 127,416,015.30 : x
  2. Step 2: Convert to fraction form
    203,857,205.70/305,785,808.55 = 127,416,015.30/x
  3. Step 3: Cross multiply
    203,857,205.70x = 305,785,808.55 × 127,416,015.30
  4. Step 4: Simplify right side
    203,857,205.70x = 38,962,009,260,729,672
  5. Step 5: Solve for x
    x = 38,962,009,260,729,672/203,857,205.70
  6. Step 6: Final answer
    x = 191,124,022.95

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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.