Home / 439,769,961.40-659,729,591.70-133,059,638.20

Finding the Fourth Proportional to 439,769,961.40, 659,729,591.70 and 133,059,638.20

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Solution

The fourth proportional to 439,769,961.40, 659,729,591.70 and 133,059,638.20 is: 199,612,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,769,961.40 : 659,729,591.70 = 133,059,638.20 : x
  2. Step 2: Convert to fraction form
    439,769,961.40/659,729,591.70 = 133,059,638.20/x
  3. Step 3: Cross multiply
    439,769,961.40x = 659,729,591.70 × 133,059,638.20
  4. Step 4: Simplify right side
    439,769,961.40x = 87,783,380,781,435,728
  5. Step 5: Solve for x
    x = 87,783,380,781,435,728/439,769,961.40
  6. Step 6: Final answer
    x = 199,612,043.76

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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.