Home / 13,886,612.38-20,819,829.48-5,801,900.12

Finding the Fourth Proportional to 13,886,612.38, 20,819,829.48 and 5,801,900.12

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Solution

The fourth proportional to 13,886,612.38, 20,819,829.48 and 5,801,900.12 is: 8,698,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886,612.38 : 20,819,829.48 = 5,801,900.12 : x
  2. Step 2: Convert to fraction form
    13,886,612.38/20,819,829.48 = 5,801,900.12/x
  3. Step 3: Cross multiply
    13,886,612.38x = 20,819,829.48 × 5,801,900.12
  4. Step 4: Simplify right side
    13,886,612.38x = 120,794,571,158,391.55
  5. Step 5: Solve for x
    x = 120,794,571,158,391.55/13,886,612.38
  6. Step 6: Final answer
    x = 8,698,634.90

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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.