Home / 13,615,816.40-20,402,729.40-11,810,229.20

Finding the Fourth Proportional to 13,615,816.40, 20,402,729.40 and 11,810,229.20

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Solution

The fourth proportional to 13,615,816.40, 20,402,729.40 and 11,810,229.20 is: 17,697,132.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615,816.40 : 20,402,729.40 = 11,810,229.20 : x
  2. Step 2: Convert to fraction form
    13,615,816.40/20,402,729.40 = 11,810,229.20/x
  3. Step 3: Cross multiply
    13,615,816.40x = 20,402,729.40 × 11,810,229.20
  4. Step 4: Simplify right side
    13,615,816.40x = 240,960,910,519,578.44
  5. Step 5: Solve for x
    x = 240,960,910,519,578.44/13,615,816.40
  6. Step 6: Final answer
    x = 17,697,132.76

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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.