Home / 280,923,601.12-387,671,713.97-155,476,040.60

Finding the Fourth Proportional to 280,923,601.12, 387,671,713.97 and 155,476,040.60

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Solution

The fourth proportional to 280,923,601.12, 387,671,713.97 and 155,476,040.60 is: 214,555,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,923,601.12 : 387,671,713.97 = 155,476,040.60 : x
  2. Step 2: Convert to fraction form
    280,923,601.12/387,671,713.97 = 155,476,040.60/x
  3. Step 3: Cross multiply
    280,923,601.12x = 387,671,713.97 × 155,476,040.60
  4. Step 4: Simplify right side
    280,923,601.12x = 60,273,663,140,863,096
  5. Step 5: Solve for x
    x = 60,273,663,140,863,096/280,923,601.12
  6. Step 6: Final answer
    x = 214,555,355.62

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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.