Home / 10,861,619.20-16,292,428.80-10,189,772.80

Finding the Fourth Proportional to 10,861,619.20, 16,292,428.80 and 10,189,772.80

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Solution

The fourth proportional to 10,861,619.20, 16,292,428.80 and 10,189,772.80 is: 15,284,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861,619.20 : 16,292,428.80 = 10,189,772.80 : x
  2. Step 2: Convert to fraction form
    10,861,619.20/16,292,428.80 = 10,189,772.80/x
  3. Step 3: Cross multiply
    10,861,619.20x = 16,292,428.80 × 10,189,772.80
  4. Step 4: Simplify right side
    10,861,619.20x = 166,016,147,832,176.66
  5. Step 5: Solve for x
    x = 166,016,147,832,176.66/10,861,619.20
  6. Step 6: Final answer
    x = 15,284,659.20

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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.