Home / 12,889,556.64-17,782,553.81-7,379,986.96

Finding the Fourth Proportional to 12,889,556.64, 17,782,553.81 and 7,379,986.96

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Solution

The fourth proportional to 12,889,556.64, 17,782,553.81 and 7,379,986.96 is: 10,181,499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,556.64 : 17,782,553.81 = 7,379,986.96 : x
  2. Step 2: Convert to fraction form
    12,889,556.64/17,782,553.81 = 7,379,986.96/x
  3. Step 3: Cross multiply
    12,889,556.64x = 17,782,553.81 × 7,379,986.96
  4. Step 4: Simplify right side
    12,889,556.64x = 131,235,015,144,385.55
  5. Step 5: Solve for x
    x = 131,235,015,144,385.55/12,889,556.64
  6. Step 6: Final answer
    x = 10,181,499.56

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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.