Home / 18,670,668.31-27,990,028.02-7,164,392.47

Finding the Fourth Proportional to 18,670,668.31, 27,990,028.02 and 7,164,392.47

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Solution

The fourth proportional to 18,670,668.31, 27,990,028.02 and 7,164,392.47 is: 10,740,458.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670,668.31 : 27,990,028.02 = 7,164,392.47 : x
  2. Step 2: Convert to fraction form
    18,670,668.31/27,990,028.02 = 7,164,392.47/x
  3. Step 3: Cross multiply
    18,670,668.31x = 27,990,028.02 × 7,164,392.47
  4. Step 4: Simplify right side
    18,670,668.31x = 200,531,545,981,577
  5. Step 5: Solve for x
    x = 200,531,545,981,577/18,670,668.31
  6. Step 6: Final answer
    x = 10,740,458.92

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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.