Home / 221,183,999.60-331,775,999.40-136,131,378.80

Finding the Fourth Proportional to 221,183,999.60, 331,775,999.40 and 136,131,378.80

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Solution

The fourth proportional to 221,183,999.60, 331,775,999.40 and 136,131,378.80 is: 204,197,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,183,999.60 : 331,775,999.40 = 136,131,378.80 : x
  2. Step 2: Convert to fraction form
    221,183,999.60/331,775,999.40 = 136,131,378.80/x
  3. Step 3: Cross multiply
    221,183,999.60x = 331,775,999.40 × 136,131,378.80
  4. Step 4: Simplify right side
    221,183,999.60x = 45,165,124,251,069,976
  5. Step 5: Solve for x
    x = 45,165,124,251,069,976/221,183,999.60
  6. Step 6: Final answer
    x = 204,197,068.20

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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.