Home / 644,379,623.20-967,073,319.60-299,375,999.20

Finding the Fourth Proportional to 644,379,623.20, 967,073,319.60 and 299,375,999.20

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Solution

The fourth proportional to 644,379,623.20, 967,073,319.60 and 299,375,999.20 is: 449,298,101.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,379,623.20 : 967,073,319.60 = 299,375,999.20 : x
  2. Step 2: Convert to fraction form
    644,379,623.20/967,073,319.60 = 299,375,999.20/x
  3. Step 3: Cross multiply
    644,379,623.20x = 967,073,319.60 × 299,375,999.20
  4. Step 4: Simplify right side
    644,379,623.20x = 289,518,541,354,910,912
  5. Step 5: Solve for x
    x = 289,518,541,354,910,912/644,379,623.20
  6. Step 6: Final answer
    x = 449,298,101.51

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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.