Home / 538,548,091.20-743,164,335.95-312,469,560.77

Finding the Fourth Proportional to 538,548,091.20, 743,164,335.95 and 312,469,560.77

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Solution

The fourth proportional to 538,548,091.20, 743,164,335.95 and 312,469,560.77 is: 431,189,409.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,548,091.20 : 743,164,335.95 = 312,469,560.77 : x
  2. Step 2: Convert to fraction form
    538,548,091.20/743,164,335.95 = 312,469,560.77/x
  3. Step 3: Cross multiply
    538,548,091.20x = 743,164,335.95 × 312,469,560.77
  4. Step 4: Simplify right side
    538,548,091.20x = 232,216,233,628,947,072
  5. Step 5: Solve for x
    x = 232,216,233,628,947,072/538,548,091.20
  6. Step 6: Final answer
    x = 431,189,409.87

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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.