Home / 20,408,212.44-28,163,330.64-11,240,855.19

Finding the Fourth Proportional to 20,408,212.44, 28,163,330.64 and 11,240,855.19

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Solution

The fourth proportional to 20,408,212.44, 28,163,330.64 and 11,240,855.19 is: 15,512,378.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,212.44 : 28,163,330.64 = 11,240,855.19 : x
  2. Step 2: Convert to fraction form
    20,408,212.44/28,163,330.64 = 11,240,855.19/x
  3. Step 3: Cross multiply
    20,408,212.44x = 28,163,330.64 × 11,240,855.19
  4. Step 4: Simplify right side
    20,408,212.44x = 316,579,921,392,330
  5. Step 5: Solve for x
    x = 316,579,921,392,330/20,408,212.44
  6. Step 6: Final answer
    x = 15,512,378.77

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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.