Home / 288,588,844.88-398,583,577.68-189,910,123.20

Finding the Fourth Proportional to 288,588,844.88, 398,583,577.68 and 189,910,123.20

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Solution

The fourth proportional to 288,588,844.88, 398,583,577.68 and 189,910,123.20 is: 262,293,770.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,588,844.88 : 398,583,577.68 = 189,910,123.20 : x
  2. Step 2: Convert to fraction form
    288,588,844.88/398,583,577.68 = 189,910,123.20/x
  3. Step 3: Cross multiply
    288,588,844.88x = 398,583,577.68 × 189,910,123.20
  4. Step 4: Simplify right side
    288,588,844.88x = 75,695,056,342,705,568
  5. Step 5: Solve for x
    x = 75,695,056,342,705,568/288,588,844.88
  6. Step 6: Final answer
    x = 262,293,770.83

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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.