Home / 20,696,739.18-31,049,652.86-6,122,517.72

Finding the Fourth Proportional to 20,696,739.18, 31,049,652.86 and 6,122,517.72

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Solution

The fourth proportional to 20,696,739.18, 31,049,652.86 and 6,122,517.72 is: 9,185,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696,739.18 : 31,049,652.86 = 6,122,517.72 : x
  2. Step 2: Convert to fraction form
    20,696,739.18/31,049,652.86 = 6,122,517.72/x
  3. Step 3: Cross multiply
    20,696,739.18x = 31,049,652.86 × 6,122,517.72
  4. Step 4: Simplify right side
    20,696,739.18x = 190,102,049,835,198.66
  5. Step 5: Solve for x
    x = 190,102,049,835,198.66/20,696,739.18
  6. Step 6: Final answer
    x = 9,185,120.81

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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.