Home / 13,389,748.37-18,479,872.57-8,165,787.22

Finding the Fourth Proportional to 13,389,748.37, 18,479,872.57 and 8,165,787.22

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Solution

The fourth proportional to 13,389,748.37, 18,479,872.57 and 8,165,787.22 is: 11,270,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389,748.37 : 18,479,872.57 = 8,165,787.22 : x
  2. Step 2: Convert to fraction form
    13,389,748.37/18,479,872.57 = 8,165,787.22/x
  3. Step 3: Cross multiply
    13,389,748.37x = 18,479,872.57 × 8,165,787.22
  4. Step 4: Simplify right side
    13,389,748.37x = 150,902,707,192,720.41
  5. Step 5: Solve for x
    x = 150,902,707,192,720.41/13,389,748.37
  6. Step 6: Final answer
    x = 11,270,018.16

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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.