Home / 288,584,837.24-398,236,405.91-156,422,996.12

Finding the Fourth Proportional to 288,584,837.24, 398,236,405.91 and 156,422,996.12

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Solution

The fourth proportional to 288,584,837.24, 398,236,405.91 and 156,422,996.12 is: 215,857,951.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,837.24 : 398,236,405.91 = 156,422,996.12 : x
  2. Step 2: Convert to fraction form
    288,584,837.24/398,236,405.91 = 156,422,996.12/x
  3. Step 3: Cross multiply
    288,584,837.24x = 398,236,405.91 × 156,422,996.12
  4. Step 4: Simplify right side
    288,584,837.24x = 62,293,331,776,716,144
  5. Step 5: Solve for x
    x = 62,293,331,776,716,144/288,584,837.24
  6. Step 6: Final answer
    x = 215,857,951.42

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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.