Home / 12,116,917.40-18,158,704.50-5,192,107.16

Finding the Fourth Proportional to 12,116,917.40, 18,158,704.50 and 5,192,107.16

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Solution

The fourth proportional to 12,116,917.40, 18,158,704.50 and 5,192,107.16 is: 7,781,016.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116,917.40 : 18,158,704.50 = 5,192,107.16 : x
  2. Step 2: Convert to fraction form
    12,116,917.40/18,158,704.50 = 5,192,107.16/x
  3. Step 3: Cross multiply
    12,116,917.40x = 18,158,704.50 × 5,192,107.16
  4. Step 4: Simplify right side
    12,116,917.40x = 94,281,939,650,774.22
  5. Step 5: Solve for x
    x = 94,281,939,650,774.22/12,116,917.40
  6. Step 6: Final answer
    x = 7,781,016.95

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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.