Home / 203,379,230.40-305,068,845.60-121,749,892.80

Finding the Fourth Proportional to 203,379,230.40, 305,068,845.60 and 121,749,892.80

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Solution

The fourth proportional to 203,379,230.40, 305,068,845.60 and 121,749,892.80 is: 182,624,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,379,230.40 : 305,068,845.60 = 121,749,892.80 : x
  2. Step 2: Convert to fraction form
    203,379,230.40/305,068,845.60 = 121,749,892.80/x
  3. Step 3: Cross multiply
    203,379,230.40x = 305,068,845.60 × 121,749,892.80
  4. Step 4: Simplify right side
    203,379,230.40x = 37,142,099,248,419,752
  5. Step 5: Solve for x
    x = 37,142,099,248,419,752/203,379,230.40
  6. Step 6: Final answer
    x = 182,624,839.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.