Home / 489,940,176.37-676,115,404.32-266,921,163.67

Finding the Fourth Proportional to 489,940,176.37, 676,115,404.32 and 266,921,163.67

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Solution

The fourth proportional to 489,940,176.37, 676,115,404.32 and 266,921,163.67 is: 368,350,094.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,940,176.37 : 676,115,404.32 = 266,921,163.67 : x
  2. Step 2: Convert to fraction form
    489,940,176.37/676,115,404.32 = 266,921,163.67/x
  3. Step 3: Cross multiply
    489,940,176.37x = 676,115,404.32 × 266,921,163.67
  4. Step 4: Simplify right side
    489,940,176.37x = 180,469,510,496,306,944
  5. Step 5: Solve for x
    x = 180,469,510,496,306,944/489,940,176.37
  6. Step 6: Final answer
    x = 368,350,094.97

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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.