Home / 197,803,231.20-296,704,846.80-128,928,477.60

Finding the Fourth Proportional to 197,803,231.20, 296,704,846.80 and 128,928,477.60

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Solution

The fourth proportional to 197,803,231.20, 296,704,846.80 and 128,928,477.60 is: 193,392,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,803,231.20 : 296,704,846.80 = 128,928,477.60 : x
  2. Step 2: Convert to fraction form
    197,803,231.20/296,704,846.80 = 128,928,477.60/x
  3. Step 3: Cross multiply
    197,803,231.20x = 296,704,846.80 × 128,928,477.60
  4. Step 4: Simplify right side
    197,803,231.20x = 38,253,704,194,465,232
  5. Step 5: Solve for x
    x = 38,253,704,194,465,232/197,803,231.20
  6. Step 6: Final answer
    x = 193,392,716.40

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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.