Home / 288,588,840.88-398,583,572.16-189,910,119.20

Finding the Fourth Proportional to 288,588,840.88, 398,583,572.16 and 189,910,119.20

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Solution

The fourth proportional to 288,588,840.88, 398,583,572.16 and 189,910,119.20 is: 262,293,765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,588,840.88 : 398,583,572.16 = 189,910,119.20 : x
  2. Step 2: Convert to fraction form
    288,588,840.88/398,583,572.16 = 189,910,119.20/x
  3. Step 3: Cross multiply
    288,588,840.88x = 398,583,572.16 × 189,910,119.20
  4. Step 4: Simplify right side
    288,588,840.88x = 75,695,053,700,067,408
  5. Step 5: Solve for x
    x = 75,695,053,700,067,408/288,588,840.88
  6. Step 6: Final answer
    x = 262,293,765.31

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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.