Home / 12,826,144.56-17,700,365.94-7,319,409.78

Finding the Fourth Proportional to 12,826,144.56, 17,700,365.94 and 7,319,409.78

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Solution

The fourth proportional to 12,826,144.56, 17,700,365.94 and 7,319,409.78 is: 10,100,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826,144.56 : 17,700,365.94 = 7,319,409.78 : x
  2. Step 2: Convert to fraction form
    12,826,144.56/17,700,365.94 = 7,319,409.78/x
  3. Step 3: Cross multiply
    12,826,144.56x = 17,700,365.94 × 7,319,409.78
  4. Step 4: Simplify right side
    12,826,144.56x = 129,556,231,609,743.50
  5. Step 5: Solve for x
    x = 129,556,231,609,743.50/12,826,144.56
  6. Step 6: Final answer
    x = 10,100,948.96

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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.