Home / 644,533,942.37-964,873,899.25-394,752,717.54

Finding the Fourth Proportional to 644,533,942.37, 964,873,899.25 and 394,752,717.54

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Solution

The fourth proportional to 644,533,942.37, 964,873,899.25 and 394,752,717.54 is: 590,948,852.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,533,942.37 : 964,873,899.25 = 394,752,717.54 : x
  2. Step 2: Convert to fraction form
    644,533,942.37/964,873,899.25 = 394,752,717.54/x
  3. Step 3: Cross multiply
    644,533,942.37x = 964,873,899.25 × 394,752,717.54
  4. Step 4: Simplify right side
    644,533,942.37x = 380,886,593,811,366,784
  5. Step 5: Solve for x
    x = 380,886,593,811,366,784/644,533,942.37
  6. Step 6: Final answer
    x = 590,948,852.77

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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.