Home / 13,540,662.02-18,687,379.12-7,738,310.54

Finding the Fourth Proportional to 13,540,662.02, 18,687,379.12 and 7,738,310.54

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Solution

The fourth proportional to 13,540,662.02, 18,687,379.12 and 7,738,310.54 is: 10,679,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540,662.02 : 18,687,379.12 = 7,738,310.54 : x
  2. Step 2: Convert to fraction form
    13,540,662.02/18,687,379.12 = 7,738,310.54/x
  3. Step 3: Cross multiply
    13,540,662.02x = 18,687,379.12 × 7,738,310.54
  4. Step 4: Simplify right side
    13,540,662.02x = 144,608,742,809,271.94
  5. Step 5: Solve for x
    x = 144,608,742,809,271.94/13,540,662.02
  6. Step 6: Final answer
    x = 10,679,591.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.