Home / 13,826,619.80-20,739,929.70-13,266,747.80

Finding the Fourth Proportional to 13,826,619.80, 20,739,929.70 and 13,266,747.80

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Solution

The fourth proportional to 13,826,619.80, 20,739,929.70 and 13,266,747.80 is: 19,900,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826,619.80 : 20,739,929.70 = 13,266,747.80 : x
  2. Step 2: Convert to fraction form
    13,826,619.80/20,739,929.70 = 13,266,747.80/x
  3. Step 3: Cross multiply
    13,826,619.80x = 20,739,929.70 × 13,266,747.80
  4. Step 4: Simplify right side
    13,826,619.80x = 275,151,416,719,629.66
  5. Step 5: Solve for x
    x = 275,151,416,719,629.66/13,826,619.80
  6. Step 6: Final answer
    x = 19,900,121.70

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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.