Home / 13,609,286.20-20,413,929.30-13,290,421.60

Finding the Fourth Proportional to 13,609,286.20, 20,413,929.30 and 13,290,421.60

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Solution

The fourth proportional to 13,609,286.20, 20,413,929.30 and 13,290,421.60 is: 19,935,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,286.20 : 20,413,929.30 = 13,290,421.60 : x
  2. Step 2: Convert to fraction form
    13,609,286.20/20,413,929.30 = 13,290,421.60/x
  3. Step 3: Cross multiply
    13,609,286.20x = 20,413,929.30 × 13,290,421.60
  4. Step 4: Simplify right side
    13,609,286.20x = 271,309,726,909,592.88
  5. Step 5: Solve for x
    x = 271,309,726,909,592.88/13,609,286.20
  6. Step 6: Final answer
    x = 19,935,632.40

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Double scale
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Similar ratio
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1.5x scale

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.