Home / 13,481,351.42-18,607,725.21-8,321,748.21

Finding the Fourth Proportional to 13,481,351.42, 18,607,725.21 and 8,321,748.21

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Solution

The fourth proportional to 13,481,351.42, 18,607,725.21 and 8,321,748.21 is: 11,486,148.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481,351.42 : 18,607,725.21 = 8,321,748.21 : x
  2. Step 2: Convert to fraction form
    13,481,351.42/18,607,725.21 = 8,321,748.21/x
  3. Step 3: Cross multiply
    13,481,351.42x = 18,607,725.21 × 8,321,748.21
  4. Step 4: Simplify right side
    13,481,351.42x = 154,848,803,958,489.38
  5. Step 5: Solve for x
    x = 154,848,803,958,489.38/13,481,351.42
  6. Step 6: Final answer
    x = 11,486,148.47

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1.5x scale

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.