Home / 12,462,799.20-18,692,816.40-10,215,016.80

Finding the Fourth Proportional to 12,462,799.20, 18,692,816.40 and 10,215,016.80

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Solution

The fourth proportional to 12,462,799.20, 18,692,816.40 and 10,215,016.80 is: 15,321,392.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,799.20 : 18,692,816.40 = 10,215,016.80 : x
  2. Step 2: Convert to fraction form
    12,462,799.20/18,692,816.40 = 10,215,016.80/x
  3. Step 3: Cross multiply
    12,462,799.20x = 18,692,816.40 × 10,215,016.80
  4. Step 4: Simplify right side
    12,462,799.20x = 190,947,433,565,315.53
  5. Step 5: Solve for x
    x = 190,947,433,565,315.53/12,462,799.20
  6. Step 6: Final answer
    x = 15,321,392.13

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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.