Home / 289,690,091.52-399,764,353.92-159,309,899.52

Finding the Fourth Proportional to 289,690,091.52, 399,764,353.92 and 159,309,899.52

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Solution

The fourth proportional to 289,690,091.52, 399,764,353.92 and 159,309,899.52 is: 219,843,277.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,690,091.52 : 399,764,353.92 = 159,309,899.52 : x
  2. Step 2: Convert to fraction form
    289,690,091.52/399,764,353.92 = 159,309,899.52/x
  3. Step 3: Cross multiply
    289,690,091.52x = 399,764,353.92 × 159,309,899.52
  4. Step 4: Simplify right side
    289,690,091.52x = 63,686,419,054,672,928
  5. Step 5: Solve for x
    x = 63,686,419,054,672,928/289,690,091.52
  6. Step 6: Final answer
    x = 219,843,277.07

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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.