Home / 189,235,616.80-283,770,481.20-86,965,664.80

Finding the Fourth Proportional to 189,235,616.80, 283,770,481.20 and 86,965,664.80

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Solution

The fourth proportional to 189,235,616.80, 283,770,481.20 and 86,965,664.80 is: 130,410,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,235,616.80 : 283,770,481.20 = 86,965,664.80 : x
  2. Step 2: Convert to fraction form
    189,235,616.80/283,770,481.20 = 86,965,664.80/x
  3. Step 3: Cross multiply
    189,235,616.80x = 283,770,481.20 × 86,965,664.80
  4. Step 4: Simplify right side
    189,235,616.80x = 24,678,288,548,173,900
  5. Step 5: Solve for x
    x = 24,678,288,548,173,900/189,235,616.80
  6. Step 6: Final answer
    x = 130,410,379.22

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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.