Home / 231,921,085.28-320,057,721.80-141,399,800.40

Finding the Fourth Proportional to 231,921,085.28, 320,057,721.80 and 141,399,800.40

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Solution

The fourth proportional to 231,921,085.28, 320,057,721.80 and 141,399,800.40 is: 195,135,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,921,085.28 : 320,057,721.80 = 141,399,800.40 : x
  2. Step 2: Convert to fraction form
    231,921,085.28/320,057,721.80 = 141,399,800.40/x
  3. Step 3: Cross multiply
    231,921,085.28x = 320,057,721.80 × 141,399,800.40
  4. Step 4: Simplify right side
    231,921,085.28x = 45,256,097,978,218,856
  5. Step 5: Solve for x
    x = 45,256,097,978,218,856/231,921,085.28
  6. Step 6: Final answer
    x = 195,135,763.20

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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.