Home / 126,212,742.36-189,379,069.83-87,410,906.37

Finding the Fourth Proportional to 126,212,742.36, 189,379,069.83 and 87,410,906.37

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Solution

The fourth proportional to 126,212,742.36, 189,379,069.83 and 87,410,906.37 is: 131,157,883.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,212,742.36 : 189,379,069.83 = 87,410,906.37 : x
  2. Step 2: Convert to fraction form
    126,212,742.36/189,379,069.83 = 87,410,906.37/x
  3. Step 3: Cross multiply
    126,212,742.36x = 189,379,069.83 × 87,410,906.37
  4. Step 4: Simplify right side
    126,212,742.36x = 16,553,796,141,347,824
  5. Step 5: Solve for x
    x = 16,553,796,141,347,824/126,212,742.36
  6. Step 6: Final answer
    x = 131,157,883.36

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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.