Home / 12,110,536.80-18,165,805.20-8,921,890.80

Finding the Fourth Proportional to 12,110,536.80, 18,165,805.20 and 8,921,890.80

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Solution

The fourth proportional to 12,110,536.80, 18,165,805.20 and 8,921,890.80 is: 13,382,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110,536.80 : 18,165,805.20 = 8,921,890.80 : x
  2. Step 2: Convert to fraction form
    12,110,536.80/18,165,805.20 = 8,921,890.80/x
  3. Step 3: Cross multiply
    12,110,536.80x = 18,165,805.20 × 8,921,890.80
  4. Step 4: Simplify right side
    12,110,536.80x = 162,073,330,288,472.16
  5. Step 5: Solve for x
    x = 162,073,330,288,472.16/12,110,536.80
  6. Step 6: Final answer
    x = 13,382,836.20

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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.