Home / 288,747,579.82-398,488,513.36-163,310,896.24

Finding the Fourth Proportional to 288,747,579.82, 398,488,513.36 and 163,310,896.24

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Solution

The fourth proportional to 288,747,579.82, 398,488,513.36 and 163,310,896.24 is: 225,378,568.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,747,579.82 : 398,488,513.36 = 163,310,896.24 : x
  2. Step 2: Convert to fraction form
    288,747,579.82/398,488,513.36 = 163,310,896.24/x
  3. Step 3: Cross multiply
    288,747,579.82x = 398,488,513.36 × 163,310,896.24
  4. Step 4: Simplify right side
    288,747,579.82x = 65,077,516,258,166,816
  5. Step 5: Solve for x
    x = 65,077,516,258,166,816/288,747,579.82
  6. Step 6: Final answer
    x = 225,378,568.71

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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.