Home / 398,921,644.44-550,520,580.60-220,305,168.86

Finding the Fourth Proportional to 398,921,644.44, 550,520,580.60 and 220,305,168.86

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Solution

The fourth proportional to 398,921,644.44, 550,520,580.60 and 220,305,168.86 is: 304,025,943.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,921,644.44 : 550,520,580.60 = 220,305,168.86 : x
  2. Step 2: Convert to fraction form
    398,921,644.44/550,520,580.60 = 220,305,168.86/x
  3. Step 3: Cross multiply
    398,921,644.44x = 550,520,580.60 × 220,305,168.86
  4. Step 4: Simplify right side
    398,921,644.44x = 121,282,529,467,235,632
  5. Step 5: Solve for x
    x = 121,282,529,467,235,632/398,921,644.44
  6. Step 6: Final answer
    x = 304,025,943.84

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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.