Home / 18,795,016.80-28,150,534.80-15,435,784.80

Finding the Fourth Proportional to 18,795,016.80, 28,150,534.80 and 15,435,784.80

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Solution

The fourth proportional to 18,795,016.80, 28,150,534.80 and 15,435,784.80 is: 23,119,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795,016.80 : 28,150,534.80 = 15,435,784.80 : x
  2. Step 2: Convert to fraction form
    18,795,016.80/28,150,534.80 = 15,435,784.80/x
  3. Step 3: Cross multiply
    18,795,016.80x = 28,150,534.80 × 15,435,784.80
  4. Step 4: Simplify right side
    18,795,016.80x = 434,525,597,177,711.06
  5. Step 5: Solve for x
    x = 434,525,597,177,711.06/18,795,016.80
  6. Step 6: Final answer
    x = 23,119,191.74

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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.