Home / 444,420,687.87-663,928,000.94-287,697,739.05

Finding the Fourth Proportional to 444,420,687.87, 663,928,000.94 and 287,697,739.05

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Solution

The fourth proportional to 444,420,687.87, 663,928,000.94 and 287,697,739.05 is: 429,796,789.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,420,687.87 : 663,928,000.94 = 287,697,739.05 : x
  2. Step 2: Convert to fraction form
    444,420,687.87/663,928,000.94 = 287,697,739.05/x
  3. Step 3: Cross multiply
    444,420,687.87x = 663,928,000.94 × 287,697,739.05
  4. Step 4: Simplify right side
    444,420,687.87x = 191,010,584,763,143,520
  5. Step 5: Solve for x
    x = 191,010,584,763,143,520/444,420,687.87
  6. Step 6: Final answer
    x = 429,796,789.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.