Home / 203,063,900.92-279,957,529.74-161,387,132.92

Finding the Fourth Proportional to 203,063,900.92, 279,957,529.74 and 161,387,132.92

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Solution

The fourth proportional to 203,063,900.92, 279,957,529.74 and 161,387,132.92 is: 222,499,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,063,900.92 : 279,957,529.74 = 161,387,132.92 : x
  2. Step 2: Convert to fraction form
    203,063,900.92/279,957,529.74 = 161,387,132.92/x
  3. Step 3: Cross multiply
    203,063,900.92x = 279,957,529.74 × 161,387,132.92
  4. Step 4: Simplify right side
    203,063,900.92x = 45,181,543,064,104,232
  5. Step 5: Solve for x
    x = 45,181,543,064,104,232/203,063,900.92
  6. Step 6: Final answer
    x = 222,499,138.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.