Home / 515,591,720.58-773,380,008.45-127,414,540.50

Finding the Fourth Proportional to 515,591,720.58, 773,380,008.45 and 127,414,540.50

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Solution

The fourth proportional to 515,591,720.58, 773,380,008.45 and 127,414,540.50 is: 191,119,939.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,591,720.58 : 773,380,008.45 = 127,414,540.50 : x
  2. Step 2: Convert to fraction form
    515,591,720.58/773,380,008.45 = 127,414,540.50/x
  3. Step 3: Cross multiply
    515,591,720.58x = 773,380,008.45 × 127,414,540.50
  4. Step 4: Simplify right side
    515,591,720.58x = 98,539,858,408,542,880
  5. Step 5: Solve for x
    x = 98,539,858,408,542,880/515,591,720.58
  6. Step 6: Final answer
    x = 191,119,939.43

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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.