Home / 311,884,342.40-430,265,288.37-188,056,227.44

Finding the Fourth Proportional to 311,884,342.40, 430,265,288.37 and 188,056,227.44

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Solution

The fourth proportional to 311,884,342.40, 430,265,288.37 and 188,056,227.44 is: 259,436,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,884,342.40 : 430,265,288.37 = 188,056,227.44 : x
  2. Step 2: Convert to fraction form
    311,884,342.40/430,265,288.37 = 188,056,227.44/x
  3. Step 3: Cross multiply
    311,884,342.40x = 430,265,288.37 × 188,056,227.44
  4. Step 4: Simplify right side
    311,884,342.40x = 80,914,066,929,245,904
  5. Step 5: Solve for x
    x = 80,914,066,929,245,904/311,884,342.40
  6. Step 6: Final answer
    x = 259,436,130.41

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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.