Home / 12,345,806.35-18,500,112.33-11,000,378.53

Finding the Fourth Proportional to 12,345,806.35, 18,500,112.33 and 11,000,378.53

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Solution

The fourth proportional to 12,345,806.35, 18,500,112.33 and 11,000,378.53 is: 16,483,997.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345,806.35 : 18,500,112.33 = 11,000,378.53 : x
  2. Step 2: Convert to fraction form
    12,345,806.35/18,500,112.33 = 11,000,378.53/x
  3. Step 3: Cross multiply
    12,345,806.35x = 18,500,112.33 × 11,000,378.53
  4. Step 4: Simplify right side
    12,345,806.35x = 203,508,238,477,520.25
  5. Step 5: Solve for x
    x = 203,508,238,477,520.25/12,345,806.35
  6. Step 6: Final answer
    x = 16,483,997.29

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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.