Home / 488,107,628.78-673,601,682.84-287,178,529.28

Finding the Fourth Proportional to 488,107,628.78, 673,601,682.84 and 287,178,529.28

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Solution

The fourth proportional to 488,107,628.78, 673,601,682.84 and 287,178,529.28 is: 396,314,110.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,107,628.78 : 673,601,682.84 = 287,178,529.28 : x
  2. Step 2: Convert to fraction form
    488,107,628.78/673,601,682.84 = 287,178,529.28/x
  3. Step 3: Cross multiply
    488,107,628.78x = 673,601,682.84 × 287,178,529.28
  4. Step 4: Simplify right side
    488,107,628.78x = 193,443,940,598,524,192
  5. Step 5: Solve for x
    x = 193,443,940,598,524,192/488,107,628.78
  6. Step 6: Final answer
    x = 396,314,110.23

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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.