Home / 499,568,285.75-689,409,688.75-276,553,692.49

Finding the Fourth Proportional to 499,568,285.75, 689,409,688.75 and 276,553,692.49

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Solution

The fourth proportional to 499,568,285.75, 689,409,688.75 and 276,553,692.49 is: 381,647,115.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,568,285.75 : 689,409,688.75 = 276,553,692.49 : x
  2. Step 2: Convert to fraction form
    499,568,285.75/689,409,688.75 = 276,553,692.49/x
  3. Step 3: Cross multiply
    499,568,285.75x = 689,409,688.75 × 276,553,692.49
  4. Step 4: Simplify right side
    499,568,285.75x = 190,658,795,063,785,504
  5. Step 5: Solve for x
    x = 190,658,795,063,785,504/499,568,285.75
  6. Step 6: Final answer
    x = 381,647,115.12

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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.