Home / 489,940,168.38-676,115,393.30-266,921,155.70

Finding the Fourth Proportional to 489,940,168.38, 676,115,393.30 and 266,921,155.70

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Solution

The fourth proportional to 489,940,168.38, 676,115,393.30 and 266,921,155.70 is: 368,350,083.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,940,168.38 : 676,115,393.30 = 266,921,155.70 : x
  2. Step 2: Convert to fraction form
    489,940,168.38/676,115,393.30 = 266,921,155.70/x
  3. Step 3: Cross multiply
    489,940,168.38x = 676,115,393.30 × 266,921,155.70
  4. Step 4: Simplify right side
    489,940,168.38x = 180,469,502,166,196,032
  5. Step 5: Solve for x
    x = 180,469,502,166,196,032/489,940,168.38
  6. Step 6: Final answer
    x = 368,350,083.98

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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.