Home / 458,082,785.44-687,769,878.96-328,619,821.24

Finding the Fourth Proportional to 458,082,785.44, 687,769,878.96 and 328,619,821.24

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Solution

The fourth proportional to 458,082,785.44, 687,769,878.96 and 328,619,821.24 is: 493,392,945.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,082,785.44 : 687,769,878.96 = 328,619,821.24 : x
  2. Step 2: Convert to fraction form
    458,082,785.44/687,769,878.96 = 328,619,821.24/x
  3. Step 3: Cross multiply
    458,082,785.44x = 687,769,878.96 × 328,619,821.24
  4. Step 4: Simplify right side
    458,082,785.44x = 226,014,814,678,091,648
  5. Step 5: Solve for x
    x = 226,014,814,678,091,648/458,082,785.44
  6. Step 6: Final answer
    x = 493,392,945.25

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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.