Home / 398,672,003.20-598,119,979.20-194,206,748.80

Finding the Fourth Proportional to 398,672,003.20, 598,119,979.20 and 194,206,748.80

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Solution

The fourth proportional to 398,672,003.20, 598,119,979.20 and 194,206,748.80 is: 291,364,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,672,003.20 : 598,119,979.20 = 194,206,748.80 : x
  2. Step 2: Convert to fraction form
    398,672,003.20/598,119,979.20 = 194,206,748.80/x
  3. Step 3: Cross multiply
    398,672,003.20x = 598,119,979.20 × 194,206,748.80
  4. Step 4: Simplify right side
    398,672,003.20x = 116,158,936,552,755,648
  5. Step 5: Solve for x
    x = 116,158,936,552,755,648/398,672,003.20
  6. Step 6: Final answer
    x = 291,364,669.75

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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.