Home / 426,942,481.12-589,181,127.76-231,372,193.12

Finding the Fourth Proportional to 426,942,481.12, 589,181,127.76 and 231,372,193.12

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Solution

The fourth proportional to 426,942,481.12, 589,181,127.76 and 231,372,193.12 is: 319,293,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,942,481.12 : 589,181,127.76 = 231,372,193.12 : x
  2. Step 2: Convert to fraction form
    426,942,481.12/589,181,127.76 = 231,372,193.12/x
  3. Step 3: Cross multiply
    426,942,481.12x = 589,181,127.76 × 231,372,193.12
  4. Step 4: Simplify right side
    426,942,481.12x = 136,320,129,674,746,112
  5. Step 5: Solve for x
    x = 136,320,129,674,746,112/426,942,481.12
  6. Step 6: Final answer
    x = 319,293,899.54

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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.