Home / 12,408,765-18,614,189.36-3,772,940.43

Finding the Fourth Proportional to 12,408,765, 18,614,189.36 and 3,772,940.43

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Solution

The fourth proportional to 12,408,765, 18,614,189.36 and 3,772,940.43 is: 5,659,727.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408,765 : 18,614,189.36 = 3,772,940.43 : x
  2. Step 2: Convert to fraction form
    12,408,765/18,614,189.36 = 3,772,940.43/x
  3. Step 3: Cross multiply
    12,408,765x = 18,614,189.36 × 3,772,940.43
  4. Step 4: Simplify right side
    12,408,765x = 70,230,227,608,019.83
  5. Step 5: Solve for x
    x = 70,230,227,608,019.83/12,408,765
  6. Step 6: Final answer
    x = 5,659,727.43

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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.