Home / 159,049,786.82-219,490,017.30-89,434,558.76

Finding the Fourth Proportional to 159,049,786.82, 219,490,017.30 and 89,434,558.76

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Solution

The fourth proportional to 159,049,786.82, 219,490,017.30 and 89,434,558.76 is: 123,420,428.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,049,786.82 : 219,490,017.30 = 89,434,558.76 : x
  2. Step 2: Convert to fraction form
    159,049,786.82/219,490,017.30 = 89,434,558.76/x
  3. Step 3: Cross multiply
    159,049,786.82x = 219,490,017.30 × 89,434,558.76
  4. Step 4: Simplify right side
    159,049,786.82x = 19,629,992,848,352,816
  5. Step 5: Solve for x
    x = 19,629,992,848,352,816/159,049,786.82
  6. Step 6: Final answer
    x = 123,420,428.54

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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.