Home / 263,896,019.20-395,844,028.80-72,419,795.20

Finding the Fourth Proportional to 263,896,019.20, 395,844,028.80 and 72,419,795.20

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Solution

The fourth proportional to 263,896,019.20, 395,844,028.80 and 72,419,795.20 is: 108,629,692.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,896,019.20 : 395,844,028.80 = 72,419,795.20 : x
  2. Step 2: Convert to fraction form
    263,896,019.20/395,844,028.80 = 72,419,795.20/x
  3. Step 3: Cross multiply
    263,896,019.20x = 395,844,028.80 × 72,419,795.20
  4. Step 4: Simplify right side
    263,896,019.20x = 28,666,943,496,838,904
  5. Step 5: Solve for x
    x = 28,666,943,496,838,904/263,896,019.20
  6. Step 6: Final answer
    x = 108,629,692.80

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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.