Home / 288,873,081.54-398,682,449.75-161,762,165.37

Finding the Fourth Proportional to 288,873,081.54, 398,682,449.75 and 161,762,165.37

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Solution

The fourth proportional to 288,873,081.54, 398,682,449.75 and 161,762,165.37 is: 223,252,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,873,081.54 : 398,682,449.75 = 161,762,165.37 : x
  2. Step 2: Convert to fraction form
    288,873,081.54/398,682,449.75 = 161,762,165.37/x
  3. Step 3: Cross multiply
    288,873,081.54x = 398,682,449.75 × 161,762,165.37
  4. Step 4: Simplify right side
    288,873,081.54x = 64,491,736,366,980,624
  5. Step 5: Solve for x
    x = 64,491,736,366,980,624/288,873,081.54
  6. Step 6: Final answer
    x = 223,252,841.78

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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.