Home / 208,179,714.32-287,289,717.36-115,361,772.24

Finding the Fourth Proportional to 208,179,714.32, 287,289,717.36 and 115,361,772.24

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Solution

The fourth proportional to 208,179,714.32, 287,289,717.36 and 115,361,772.24 is: 159,200,194.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,179,714.32 : 287,289,717.36 = 115,361,772.24 : x
  2. Step 2: Convert to fraction form
    208,179,714.32/287,289,717.36 = 115,361,772.24/x
  3. Step 3: Cross multiply
    208,179,714.32x = 287,289,717.36 × 115,361,772.24
  4. Step 4: Simplify right side
    208,179,714.32x = 33,142,250,940,978,296
  5. Step 5: Solve for x
    x = 33,142,250,940,978,296/208,179,714.32
  6. Step 6: Final answer
    x = 159,200,194.17

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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.