Home / 399,028,247.72-550,647,936.98-220,408,934.72

Finding the Fourth Proportional to 399,028,247.72, 550,647,936.98 and 220,408,934.72

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Solution

The fourth proportional to 399,028,247.72, 550,647,936.98 and 220,408,934.72 is: 304,158,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,028,247.72 : 550,647,936.98 = 220,408,934.72 : x
  2. Step 2: Convert to fraction form
    399,028,247.72/550,647,936.98 = 220,408,934.72/x
  3. Step 3: Cross multiply
    399,028,247.72x = 550,647,936.98 × 220,408,934.72
  4. Step 4: Simplify right side
    399,028,247.72x = 121,367,725,191,672,224
  5. Step 5: Solve for x
    x = 121,367,725,191,672,224/399,028,247.72
  6. Step 6: Final answer
    x = 304,158,229.11

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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.