Home / 208,179,764.28-287,289,785.88-115,361,822.16

Finding the Fourth Proportional to 208,179,764.28, 287,289,785.88 and 115,361,822.16

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Solution

The fourth proportional to 208,179,764.28, 287,289,785.88 and 115,361,822.16 is: 159,200,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,179,764.28 : 287,289,785.88 = 115,361,822.16 : x
  2. Step 2: Convert to fraction form
    208,179,764.28/287,289,785.88 = 115,361,822.16/x
  3. Step 3: Cross multiply
    208,179,764.28x = 287,289,785.88 × 115,361,822.16
  4. Step 4: Simplify right side
    208,179,764.28x = 33,142,273,187,073,036
  5. Step 5: Solve for x
    x = 33,142,273,187,073,036/208,179,764.28
  6. Step 6: Final answer
    x = 159,200,262.82

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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.