Home / 389,964,942.38-584,947,378.06-171,615,284.38

Finding the Fourth Proportional to 389,964,942.38, 584,947,378.06 and 171,615,284.38

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Solution

The fourth proportional to 389,964,942.38, 584,947,378.06 and 171,615,284.38 is: 257,422,910.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,964,942.38 : 584,947,378.06 = 171,615,284.38 : x
  2. Step 2: Convert to fraction form
    389,964,942.38/584,947,378.06 = 171,615,284.38/x
  3. Step 3: Cross multiply
    389,964,942.38x = 584,947,378.06 × 171,615,284.38
  4. Step 4: Simplify right side
    389,964,942.38x = 100,385,910,633,102,256
  5. Step 5: Solve for x
    x = 100,385,910,633,102,256/389,964,942.38
  6. Step 6: Final answer
    x = 257,422,910.94

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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.