Home / 12,109,601.80-18,163,965.30-4,920,932.80

Finding the Fourth Proportional to 12,109,601.80, 18,163,965.30 and 4,920,932.80

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Solution

The fourth proportional to 12,109,601.80, 18,163,965.30 and 4,920,932.80 is: 7,381,221.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,601.80 : 18,163,965.30 = 4,920,932.80 : x
  2. Step 2: Convert to fraction form
    12,109,601.80/18,163,965.30 = 4,920,932.80/x
  3. Step 3: Cross multiply
    12,109,601.80x = 18,163,965.30 × 4,920,932.80
  4. Step 4: Simplify right side
    12,109,601.80x = 89,383,652,622,831.84
  5. Step 5: Solve for x
    x = 89,383,652,622,831.84/12,109,601.80
  6. Step 6: Final answer
    x = 7,381,221.46

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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.