Home / 13,609,236.20-20,413,854.30-5,087,809.40

Finding the Fourth Proportional to 13,609,236.20, 20,413,854.30 and 5,087,809.40

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Solution

The fourth proportional to 13,609,236.20, 20,413,854.30 and 5,087,809.40 is: 7,631,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,236.20 : 20,413,854.30 = 5,087,809.40 : x
  2. Step 2: Convert to fraction form
    13,609,236.20/20,413,854.30 = 5,087,809.40/x
  3. Step 3: Cross multiply
    13,609,236.20x = 20,413,854.30 × 5,087,809.40
  4. Step 4: Simplify right side
    13,609,236.20x = 103,861,799,797,770.44
  5. Step 5: Solve for x
    x = 103,861,799,797,770.44/13,609,236.20
  6. Step 6: Final answer
    x = 7,631,714.10

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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.