Home / 13,781,308.62-20,672,182.16-7,672,120.60

Finding the Fourth Proportional to 13,781,308.62, 20,672,182.16 and 7,672,120.60

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Solution

The fourth proportional to 13,781,308.62, 20,672,182.16 and 7,672,120.60 is: 11,508,302.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781,308.62 : 20,672,182.16 = 7,672,120.60 : x
  2. Step 2: Convert to fraction form
    13,781,308.62/20,672,182.16 = 7,672,120.60/x
  3. Step 3: Cross multiply
    13,781,308.62x = 20,672,182.16 × 7,672,120.60
  4. Step 4: Simplify right side
    13,781,308.62x = 158,599,474,596,688.50
  5. Step 5: Solve for x
    x = 158,599,474,596,688.50/13,781,308.62
  6. Step 6: Final answer
    x = 11,508,302.95

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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.