Home / 438,592,120.96-605,257,837.28-240,322,112.64

Finding the Fourth Proportional to 438,592,120.96, 605,257,837.28 and 240,322,112.64

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Solution

The fourth proportional to 438,592,120.96, 605,257,837.28 and 240,322,112.64 is: 331,644,904.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,592,120.96 : 605,257,837.28 = 240,322,112.64 : x
  2. Step 2: Convert to fraction form
    438,592,120.96/605,257,837.28 = 240,322,112.64/x
  3. Step 3: Cross multiply
    438,592,120.96x = 605,257,837.28 × 240,322,112.64
  4. Step 4: Simplify right side
    438,592,120.96x = 145,456,842,147,046,944
  5. Step 5: Solve for x
    x = 145,456,842,147,046,944/438,592,120.96
  6. Step 6: Final answer
    x = 331,644,904.68

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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.