Home / 378,459,188.34-567,686,400.39-203,664,558.66

Finding the Fourth Proportional to 378,459,188.34, 567,686,400.39 and 203,664,558.66

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Solution

The fourth proportional to 378,459,188.34, 567,686,400.39 and 203,664,558.66 is: 305,495,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,459,188.34 : 567,686,400.39 = 203,664,558.66 : x
  2. Step 2: Convert to fraction form
    378,459,188.34/567,686,400.39 = 203,664,558.66/x
  3. Step 3: Cross multiply
    378,459,188.34x = 567,686,400.39 × 203,664,558.66
  4. Step 4: Simplify right side
    378,459,188.34x = 115,617,600,192,713,392
  5. Step 5: Solve for x
    x = 115,617,600,192,713,392/378,459,188.34
  6. Step 6: Final answer
    x = 305,495,556.07

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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.