Home / 18,684,486.90-28,013,279.43-11,481,138.06

Finding the Fourth Proportional to 18,684,486.90, 28,013,279.43 and 11,481,138.06

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Solution

The fourth proportional to 18,684,486.90, 28,013,279.43 and 11,481,138.06 is: 17,213,441.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684,486.90 : 28,013,279.43 = 11,481,138.06 : x
  2. Step 2: Convert to fraction form
    18,684,486.90/28,013,279.43 = 11,481,138.06/x
  3. Step 3: Cross multiply
    18,684,486.90x = 28,013,279.43 × 11,481,138.06
  4. Step 4: Simplify right side
    18,684,486.90x = 321,624,328,649,188.12
  5. Step 5: Solve for x
    x = 321,624,328,649,188.12/18,684,486.90
  6. Step 6: Final answer
    x = 17,213,441.84

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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.