Home / 13,282,747.56-18,331,569.54-8,129,540.52

Finding the Fourth Proportional to 13,282,747.56, 18,331,569.54 and 8,129,540.52

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Solution

The fourth proportional to 13,282,747.56, 18,331,569.54 and 8,129,540.52 is: 11,219,609.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282,747.56 : 18,331,569.54 = 8,129,540.52 : x
  2. Step 2: Convert to fraction form
    13,282,747.56/18,331,569.54 = 8,129,540.52/x
  3. Step 3: Cross multiply
    13,282,747.56x = 18,331,569.54 × 8,129,540.52
  4. Step 4: Simplify right side
    13,282,747.56x = 149,027,237,370,627.75
  5. Step 5: Solve for x
    x = 149,027,237,370,627.75/13,282,747.56
  6. Step 6: Final answer
    x = 11,219,609.25

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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.