Home / 392,472,855.61-541,588,137.09-216,250,989.41

Finding the Fourth Proportional to 392,472,855.61, 541,588,137.09 and 216,250,989.41

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Solution

The fourth proportional to 392,472,855.61, 541,588,137.09 and 216,250,989.41 is: 298,412,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,472,855.61 : 541,588,137.09 = 216,250,989.41 : x
  2. Step 2: Convert to fraction form
    392,472,855.61/541,588,137.09 = 216,250,989.41/x
  3. Step 3: Cross multiply
    392,472,855.61x = 541,588,137.09 × 216,250,989.41
  4. Step 4: Simplify right side
    392,472,855.61x = 117,118,970,498,431,216
  5. Step 5: Solve for x
    x = 117,118,970,498,431,216/392,472,855.61
  6. Step 6: Final answer
    x = 298,412,919.07

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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.