Home / 247,322,743.81-370,996,046.51-81,322,573.39

Finding the Fourth Proportional to 247,322,743.81, 370,996,046.51 and 81,322,573.39

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Solution

The fourth proportional to 247,322,743.81, 370,996,046.51 and 81,322,573.39 is: 121,987,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,322,743.81 : 370,996,046.51 = 81,322,573.39 : x
  2. Step 2: Convert to fraction form
    247,322,743.81/370,996,046.51 = 81,322,573.39/x
  3. Step 3: Cross multiply
    247,322,743.81x = 370,996,046.51 × 81,322,573.39
  4. Step 4: Simplify right side
    247,322,743.81x = 30,170,353,218,375,228
  5. Step 5: Solve for x
    x = 30,170,353,218,375,228/247,322,743.81
  6. Step 6: Final answer
    x = 121,987,783.06

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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.