Home / 274,214,141.20-378,415,473.78-156,741,993.73

Finding the Fourth Proportional to 274,214,141.20, 378,415,473.78 and 156,741,993.73

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Solution

The fourth proportional to 274,214,141.20, 378,415,473.78 and 156,741,993.73 is: 216,303,927.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,214,141.20 : 378,415,473.78 = 156,741,993.73 : x
  2. Step 2: Convert to fraction form
    274,214,141.20/378,415,473.78 = 156,741,993.73/x
  3. Step 3: Cross multiply
    274,214,141.20x = 378,415,473.78 × 156,741,993.73
  4. Step 4: Simplify right side
    274,214,141.20x = 59,313,595,818,559,728
  5. Step 5: Solve for x
    x = 59,313,595,818,559,728/274,214,141.20
  6. Step 6: Final answer
    x = 216,303,927.87

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Double scale
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1.5x scale

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.