Home / 205,850,051.20-308,491,641.60-136,565,891.20

Finding the Fourth Proportional to 205,850,051.20, 308,491,641.60 and 136,565,891.20

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Solution

The fourth proportional to 205,850,051.20, 308,491,641.60 and 136,565,891.20 is: 204,660,799.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,850,051.20 : 308,491,641.60 = 136,565,891.20 : x
  2. Step 2: Convert to fraction form
    205,850,051.20/308,491,641.60 = 136,565,891.20/x
  3. Step 3: Cross multiply
    205,850,051.20x = 308,491,641.60 × 136,565,891.20
  4. Step 4: Simplify right side
    205,850,051.20x = 42,129,435,962,854,992
  5. Step 5: Solve for x
    x = 42,129,435,962,854,992/205,850,051.20
  6. Step 6: Final answer
    x = 204,660,799.05

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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.