Home / 288,584,776.17-398,236,321.88-156,422,935.14

Finding the Fourth Proportional to 288,584,776.17, 398,236,321.88 and 156,422,935.14

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Solution

The fourth proportional to 288,584,776.17, 398,236,321.88 and 156,422,935.14 is: 215,857,867.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,776.17 : 398,236,321.88 = 156,422,935.14 : x
  2. Step 2: Convert to fraction form
    288,584,776.17/398,236,321.88 = 156,422,935.14/x
  3. Step 3: Cross multiply
    288,584,776.17x = 398,236,321.88 × 156,422,935.14
  4. Step 4: Simplify right side
    288,584,776.17x = 62,293,294,345,836,216
  5. Step 5: Solve for x
    x = 62,293,294,345,836,216/288,584,776.17
  6. Step 6: Final answer
    x = 215,857,867.39

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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.