Home / 12,105,842.09-16,705,458.32-6,878,159.73

Finding the Fourth Proportional to 12,105,842.09, 16,705,458.32 and 6,878,159.73

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Solution

The fourth proportional to 12,105,842.09, 16,705,458.32 and 6,878,159.73 is: 9,491,517.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105,842.09 : 16,705,458.32 = 6,878,159.73 : x
  2. Step 2: Convert to fraction form
    12,105,842.09/16,705,458.32 = 6,878,159.73/x
  3. Step 3: Cross multiply
    12,105,842.09x = 16,705,458.32 × 6,878,159.73
  4. Step 4: Simplify right side
    12,105,842.09x = 114,902,810,653,426.66
  5. Step 5: Solve for x
    x = 114,902,810,653,426.66/12,105,842.09
  6. Step 6: Final answer
    x = 9,491,517.39

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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.