Home / 13,672,164.60-18,869,907.24-7,874,303.04

Finding the Fourth Proportional to 13,672,164.60, 18,869,907.24 and 7,874,303.04

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Solution

The fourth proportional to 13,672,164.60, 18,869,907.24 and 7,874,303.04 is: 10,867,874.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672,164.60 : 18,869,907.24 = 7,874,303.04 : x
  2. Step 2: Convert to fraction form
    13,672,164.60/18,869,907.24 = 7,874,303.04/x
  3. Step 3: Cross multiply
    13,672,164.60x = 18,869,907.24 × 7,874,303.04
  4. Step 4: Simplify right side
    13,672,164.60x = 148,587,367,944,450
  5. Step 5: Solve for x
    x = 148,587,367,944,450/13,672,164.60
  6. Step 6: Final answer
    x = 10,867,874.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.