Home / 18,670,446.83-27,989,696.33-7,164,171.29

Finding the Fourth Proportional to 18,670,446.83, 27,989,696.33 and 7,164,171.29

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Solution

The fourth proportional to 18,670,446.83, 27,989,696.33 and 7,164,171.29 is: 10,740,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670,446.83 : 27,989,696.33 = 7,164,171.29 : x
  2. Step 2: Convert to fraction form
    18,670,446.83/27,989,696.33 = 7,164,171.29/x
  3. Step 3: Cross multiply
    18,670,446.83x = 27,989,696.33 × 7,164,171.29
  4. Step 4: Simplify right side
    18,670,446.83x = 200,522,978,924,223.41
  5. Step 5: Solve for x
    x = 200,522,978,924,223.41/18,670,446.83
  6. Step 6: Final answer
    x = 10,740,127.47

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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.