Home / 18,664,158.08-27,990,182.57-7,149,012.59

Finding the Fourth Proportional to 18,664,158.08, 27,990,182.57 and 7,149,012.59

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Solution

The fourth proportional to 18,664,158.08, 27,990,182.57 and 7,149,012.59 is: 10,721,199.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664,158.08 : 27,990,182.57 = 7,149,012.59 : x
  2. Step 2: Convert to fraction form
    18,664,158.08/27,990,182.57 = 7,149,012.59/x
  3. Step 3: Cross multiply
    18,664,158.08x = 27,990,182.57 × 7,149,012.59
  4. Step 4: Simplify right side
    18,664,158.08x = 200,102,167,413,632.59
  5. Step 5: Solve for x
    x = 200,102,167,413,632.59/18,664,158.08
  6. Step 6: Final answer
    x = 10,721,199.78

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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.