Home / 81,129,203.56-111,958,399.34-43,959,454.50

Finding the Fourth Proportional to 81,129,203.56, 111,958,399.34 and 43,959,454.50

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Solution

The fourth proportional to 81,129,203.56, 111,958,399.34 and 43,959,454.50 is: 60,664,100.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,129,203.56 : 111,958,399.34 = 43,959,454.50 : x
  2. Step 2: Convert to fraction form
    81,129,203.56/111,958,399.34 = 43,959,454.50/x
  3. Step 3: Cross multiply
    81,129,203.56x = 111,958,399.34 × 43,959,454.50
  4. Step 4: Simplify right side
    81,129,203.56x = 4,921,630,161,679,560
  5. Step 5: Solve for x
    x = 4,921,630,161,679,560/81,129,203.56
  6. Step 6: Final answer
    x = 60,664,100.54

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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.