Home / 10,380,143.91-15,570,640.05-3,561,405.96

Finding the Fourth Proportional to 10,380,143.91, 15,570,640.05 and 3,561,405.96

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Solution

The fourth proportional to 10,380,143.91, 15,570,640.05 and 3,561,405.96 is: 5,342,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380,143.91 : 15,570,640.05 = 3,561,405.96 : x
  2. Step 2: Convert to fraction form
    10,380,143.91/15,570,640.05 = 3,561,405.96/x
  3. Step 3: Cross multiply
    10,380,143.91x = 15,570,640.05 × 3,561,405.96
  4. Step 4: Simplify right side
    10,380,143.91x = 55,453,370,275,084.70
  5. Step 5: Solve for x
    x = 55,453,370,275,084.70/10,380,143.91
  6. Step 6: Final answer
    x = 5,342,254.48

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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.