Home / 256,911,469.54-354,538,176.33-139,436,803.42

Finding the Fourth Proportional to 256,911,469.54, 354,538,176.33 and 139,436,803.42

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Solution

The fourth proportional to 256,911,469.54, 354,538,176.33 and 139,436,803.42 is: 192,422,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,911,469.54 : 354,538,176.33 = 139,436,803.42 : x
  2. Step 2: Convert to fraction form
    256,911,469.54/354,538,176.33 = 139,436,803.42/x
  3. Step 3: Cross multiply
    256,911,469.54x = 354,538,176.33 × 139,436,803.42
  4. Step 4: Simplify right side
    256,911,469.54x = 49,435,669,997,811,504
  5. Step 5: Solve for x
    x = 49,435,669,997,811,504/256,911,469.54
  6. Step 6: Final answer
    x = 192,422,977.79

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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.