Home / 458,303,778.72-687,448,936.92-113,257,396.44

Finding the Fourth Proportional to 458,303,778.72, 687,448,936.92 and 113,257,396.44

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Solution

The fourth proportional to 458,303,778.72, 687,448,936.92 and 113,257,396.44 is: 169,884,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,303,778.72 : 687,448,936.92 = 113,257,396.44 : x
  2. Step 2: Convert to fraction form
    458,303,778.72/687,448,936.92 = 113,257,396.44/x
  3. Step 3: Cross multiply
    458,303,778.72x = 687,448,936.92 × 113,257,396.44
  4. Step 4: Simplify right side
    458,303,778.72x = 77,858,676,781,004,992
  5. Step 5: Solve for x
    x = 77,858,676,781,004,992/458,303,778.72
  6. Step 6: Final answer
    x = 169,884,431.24

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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.