Home / 378,435,999.60-567,653,999.40-136,067,410.80

Finding the Fourth Proportional to 378,435,999.60, 567,653,999.40 and 136,067,410.80

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Solution

The fourth proportional to 378,435,999.60, 567,653,999.40 and 136,067,410.80 is: 204,101,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,435,999.60 : 567,653,999.40 = 136,067,410.80 : x
  2. Step 2: Convert to fraction form
    378,435,999.60/567,653,999.40 = 136,067,410.80/x
  3. Step 3: Cross multiply
    378,435,999.60x = 567,653,999.40 × 136,067,410.80
  4. Step 4: Simplify right side
    378,435,999.60x = 77,239,209,928,622,752
  5. Step 5: Solve for x
    x = 77,239,209,928,622,752/378,435,999.60
  6. Step 6: Final answer
    x = 204,101,116.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.