Home / 370,395,747.20-555,436,334.40-178,978,198.40

Finding the Fourth Proportional to 370,395,747.20, 555,436,334.40 and 178,978,198.40

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Solution

The fourth proportional to 370,395,747.20, 555,436,334.40 and 178,978,198.40 is: 268,391,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,395,747.20 : 555,436,334.40 = 178,978,198.40 : x
  2. Step 2: Convert to fraction form
    370,395,747.20/555,436,334.40 = 178,978,198.40/x
  3. Step 3: Cross multiply
    370,395,747.20x = 555,436,334.40 × 178,978,198.40
  4. Step 4: Simplify right side
    370,395,747.20x = 99,410,994,456,811,952
  5. Step 5: Solve for x
    x = 99,410,994,456,811,952/370,395,747.20
  6. Step 6: Final answer
    x = 268,391,295.55

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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.