Home / 202,464,719.49-279,399,921.82-109,643,103.21

Finding the Fourth Proportional to 202,464,719.49, 279,399,921.82 and 109,643,103.21

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Solution

The fourth proportional to 202,464,719.49, 279,399,921.82 and 109,643,103.21 is: 151,306,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,464,719.49 : 279,399,921.82 = 109,643,103.21 : x
  2. Step 2: Convert to fraction form
    202,464,719.49/279,399,921.82 = 109,643,103.21/x
  3. Step 3: Cross multiply
    202,464,719.49x = 279,399,921.82 × 109,643,103.21
  4. Step 4: Simplify right side
    202,464,719.49x = 30,634,274,464,976,188
  5. Step 5: Solve for x
    x = 30,634,274,464,976,188/202,464,719.49
  6. Step 6: Final answer
    x = 151,306,729.10

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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.