Home / 213,851,399.38-320,912,035.36-91,029,516.28

Finding the Fourth Proportional to 213,851,399.38, 320,912,035.36 and 91,029,516.28

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Solution

The fourth proportional to 213,851,399.38, 320,912,035.36 and 91,029,516.28 is: 136,601,712.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,851,399.38 : 320,912,035.36 = 91,029,516.28 : x
  2. Step 2: Convert to fraction form
    213,851,399.38/320,912,035.36 = 91,029,516.28/x
  3. Step 3: Cross multiply
    213,851,399.38x = 320,912,035.36 × 91,029,516.28
  4. Step 4: Simplify right side
    213,851,399.38x = 29,212,467,347,251,056
  5. Step 5: Solve for x
    x = 29,212,467,347,251,056/213,851,399.38
  6. Step 6: Final answer
    x = 136,601,712.37

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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.