Home / 256,238,815.05-384,358,222.58-253,850,027.85

Finding the Fourth Proportional to 256,238,815.05, 384,358,222.58 and 253,850,027.85

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Solution

The fourth proportional to 256,238,815.05, 384,358,222.58 and 253,850,027.85 is: 380,775,041.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,238,815.05 : 384,358,222.58 = 253,850,027.85 : x
  2. Step 2: Convert to fraction form
    256,238,815.05/384,358,222.58 = 253,850,027.85/x
  3. Step 3: Cross multiply
    256,238,815.05x = 384,358,222.58 × 253,850,027.85
  4. Step 4: Simplify right side
    256,238,815.05x = 97,569,345,505,040,240
  5. Step 5: Solve for x
    x = 97,569,345,505,040,240/256,238,815.05
  6. Step 6: Final answer
    x = 380,775,041.78

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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.