Home / 402,515,999.70-603,773,999.55-356,599,497.30

Finding the Fourth Proportional to 402,515,999.70, 603,773,999.55 and 356,599,497.30

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Solution

The fourth proportional to 402,515,999.70, 603,773,999.55 and 356,599,497.30 is: 534,899,245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,515,999.70 : 603,773,999.55 = 356,599,497.30 : x
  2. Step 2: Convert to fraction form
    402,515,999.70/603,773,999.55 = 356,599,497.30/x
  3. Step 3: Cross multiply
    402,515,999.70x = 603,773,999.55 × 356,599,497.30
  4. Step 4: Simplify right side
    402,515,999.70x = 215,305,504,722,340,416
  5. Step 5: Solve for x
    x = 215,305,504,722,340,416/402,515,999.70
  6. Step 6: Final answer
    x = 534,899,245.95

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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.