Home / 12,585,546.72-17,368,572.96-7,079,178.60

Finding the Fourth Proportional to 12,585,546.72, 17,368,572.96 and 7,079,178.60

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Solution

The fourth proportional to 12,585,546.72, 17,368,572.96 and 7,079,178.60 is: 9,769,558.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585,546.72 : 17,368,572.96 = 7,079,178.60 : x
  2. Step 2: Convert to fraction form
    12,585,546.72/17,368,572.96 = 7,079,178.60/x
  3. Step 3: Cross multiply
    12,585,546.72x = 17,368,572.96 × 7,079,178.60
  4. Step 4: Simplify right side
    12,585,546.72x = 122,955,230,010,970.66
  5. Step 5: Solve for x
    x = 122,955,230,010,970.66/12,585,546.72
  6. Step 6: Final answer
    x = 9,769,558.11

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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.