Home / 18,660,031.06-27,978,499.26-7,287,106.18

Finding the Fourth Proportional to 18,660,031.06, 27,978,499.26 and 7,287,106.18

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Solution

The fourth proportional to 18,660,031.06, 27,978,499.26 and 7,287,106.18 is: 10,926,149.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660,031.06 : 27,978,499.26 = 7,287,106.18 : x
  2. Step 2: Convert to fraction form
    18,660,031.06/27,978,499.26 = 7,287,106.18/x
  3. Step 3: Cross multiply
    18,660,031.06x = 27,978,499.26 × 7,287,106.18
  4. Step 4: Simplify right side
    18,660,031.06x = 203,882,294,864,671.44
  5. Step 5: Solve for x
    x = 203,882,294,864,671.44/18,660,031.06
  6. Step 6: Final answer
    x = 10,926,149.81

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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.