Home / 11,411,990.76-15,722,079.24-7,968,777.96

Finding the Fourth Proportional to 11,411,990.76, 15,722,079.24 and 7,968,777.96

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Solution

The fourth proportional to 11,411,990.76, 15,722,079.24 and 7,968,777.96 is: 10,978,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411,990.76 : 15,722,079.24 = 7,968,777.96 : x
  2. Step 2: Convert to fraction form
    11,411,990.76/15,722,079.24 = 7,968,777.96/x
  3. Step 3: Cross multiply
    11,411,990.76x = 15,722,079.24 × 7,968,777.96
  4. Step 4: Simplify right side
    11,411,990.76x = 125,285,758,533,085.55
  5. Step 5: Solve for x
    x = 125,285,758,533,085.55/11,411,990.76
  6. Step 6: Final answer
    x = 10,978,431.47

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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.