Home / 20,674,894.41-28,530,271.18-11,380,649.09

Finding the Fourth Proportional to 20,674,894.41, 28,530,271.18 and 11,380,649.09

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Solution

The fourth proportional to 20,674,894.41, 28,530,271.18 and 11,380,649.09 is: 15,704,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674,894.41 : 28,530,271.18 = 11,380,649.09 : x
  2. Step 2: Convert to fraction form
    20,674,894.41/28,530,271.18 = 11,380,649.09/x
  3. Step 3: Cross multiply
    20,674,894.41x = 28,530,271.18 × 11,380,649.09
  4. Step 4: Simplify right side
    20,674,894.41x = 324,693,004,718,161.88
  5. Step 5: Solve for x
    x = 324,693,004,718,161.88/20,674,894.41
  6. Step 6: Final answer
    x = 15,704,699.54

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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.