Home / 792,826,905.42-1,187,428,893.57-378,593,870.94

Finding the Fourth Proportional to 792,826,905.42, 1,187,428,893.57 and 378,593,870.94

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Solution

The fourth proportional to 792,826,905.42, 1,187,428,893.57 and 378,593,870.94 is: 567,025,788.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,826,905.42 : 1,187,428,893.57 = 378,593,870.94 : x
  2. Step 2: Convert to fraction form
    792,826,905.42/1,187,428,893.57 = 378,593,870.94/x
  3. Step 3: Cross multiply
    792,826,905.42x = 1,187,428,893.57 × 378,593,870.94
  4. Step 4: Simplify right side
    792,826,905.42x = 449,553,301,282,667,520
  5. Step 5: Solve for x
    x = 449,553,301,282,667,520/792,826,905.42
  6. Step 6: Final answer
    x = 567,025,788.62

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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.