Home / 263,896,209.20-395,844,313.80-72,419,985.20

Finding the Fourth Proportional to 263,896,209.20, 395,844,313.80 and 72,419,985.20

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Solution

The fourth proportional to 263,896,209.20, 395,844,313.80 and 72,419,985.20 is: 108,629,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,896,209.20 : 395,844,313.80 = 72,419,985.20 : x
  2. Step 2: Convert to fraction form
    263,896,209.20/395,844,313.80 = 72,419,985.20/x
  3. Step 3: Cross multiply
    263,896,209.20x = 395,844,313.80 × 72,419,985.20
  4. Step 4: Simplify right side
    263,896,209.20x = 28,667,039,346,900,156
  5. Step 5: Solve for x
    x = 28,667,039,346,900,156/263,896,209.20
  6. Step 6: Final answer
    x = 108,629,977.80

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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.