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Finding the Fourth Proportional to 199,589,269.80, 299,383,904.70 and 90,466,717.80

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Solution

The fourth proportional to 199,589,269.80, 299,383,904.70 and 90,466,717.80 is: 135,700,076.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,589,269.80 : 299,383,904.70 = 90,466,717.80 : x
  2. Step 2: Convert to fraction form
    199,589,269.80/299,383,904.70 = 90,466,717.80/x
  3. Step 3: Cross multiply
    199,589,269.80x = 299,383,904.70 × 90,466,717.80
  4. Step 4: Simplify right side
    199,589,269.80x = 27,084,279,220,356,992
  5. Step 5: Solve for x
    x = 27,084,279,220,356,992/199,589,269.80
  6. Step 6: Final answer
    x = 135,700,076.70

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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.