Home / 126,028,858.80-189,043,288.20-106,545,313.20

Finding the Fourth Proportional to 126,028,858.80, 189,043,288.20 and 106,545,313.20

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Solution

The fourth proportional to 126,028,858.80, 189,043,288.20 and 106,545,313.20 is: 159,817,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,028,858.80 : 189,043,288.20 = 106,545,313.20 : x
  2. Step 2: Convert to fraction form
    126,028,858.80/189,043,288.20 = 106,545,313.20/x
  3. Step 3: Cross multiply
    126,028,858.80x = 189,043,288.20 × 106,545,313.20
  4. Step 4: Simplify right side
    126,028,858.80x = 20,141,676,349,626,864
  5. Step 5: Solve for x
    x = 20,141,676,349,626,864/126,028,858.80
  6. Step 6: Final answer
    x = 159,817,969.80

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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.