Home / 13,451,346.82-18,565,390.03-8,424,425.49

Finding the Fourth Proportional to 13,451,346.82, 18,565,390.03 and 8,424,425.49

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Solution

The fourth proportional to 13,451,346.82, 18,565,390.03 and 8,424,425.49 is: 11,627,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451,346.82 : 18,565,390.03 = 8,424,425.49 : x
  2. Step 2: Convert to fraction form
    13,451,346.82/18,565,390.03 = 8,424,425.49/x
  3. Step 3: Cross multiply
    13,451,346.82x = 18,565,390.03 × 8,424,425.49
  4. Step 4: Simplify right side
    13,451,346.82x = 156,402,745,039,504.72
  5. Step 5: Solve for x
    x = 156,402,745,039,504.72/13,451,346.82
  6. Step 6: Final answer
    x = 11,627,292.58

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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.