Home / 276,511,660.45-414,477,793.78-128,837,454.30

Finding the Fourth Proportional to 276,511,660.45, 414,477,793.78 and 128,837,454.30

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Solution

The fourth proportional to 276,511,660.45, 414,477,793.78 and 128,837,454.30 is: 193,121,200.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,511,660.45 : 414,477,793.78 = 128,837,454.30 : x
  2. Step 2: Convert to fraction form
    276,511,660.45/414,477,793.78 = 128,837,454.30/x
  3. Step 3: Cross multiply
    276,511,660.45x = 414,477,793.78 × 128,837,454.30
  4. Step 4: Simplify right side
    276,511,660.45x = 53,400,263,814,495,568
  5. Step 5: Solve for x
    x = 53,400,263,814,495,568/276,511,660.45
  6. Step 6: Final answer
    x = 193,121,200.49

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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.