Home / 219,723,321.64-303,212,190.90-120,603,932.68

Finding the Fourth Proportional to 219,723,321.64, 303,212,190.90 and 120,603,932.68

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Solution

The fourth proportional to 219,723,321.64, 303,212,190.90 and 120,603,932.68 is: 166,430,137.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,723,321.64 : 303,212,190.90 = 120,603,932.68 : x
  2. Step 2: Convert to fraction form
    219,723,321.64/303,212,190.90 = 120,603,932.68/x
  3. Step 3: Cross multiply
    219,723,321.64x = 303,212,190.90 × 120,603,932.68
  4. Step 4: Simplify right side
    219,723,321.64x = 36,568,582,659,058,904
  5. Step 5: Solve for x
    x = 36,568,582,659,058,904/219,723,321.64
  6. Step 6: Final answer
    x = 166,430,137.62

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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.