Home / 20,392,290.66-28,142,103.74-11,099,411.76

Finding the Fourth Proportional to 20,392,290.66, 28,142,103.74 and 11,099,411.76

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Solution

The fourth proportional to 20,392,290.66, 28,142,103.74 and 11,099,411.76 is: 15,317,592.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,290.66 : 28,142,103.74 = 11,099,411.76 : x
  2. Step 2: Convert to fraction form
    20,392,290.66/28,142,103.74 = 11,099,411.76/x
  3. Step 3: Cross multiply
    20,392,290.66x = 28,142,103.74 × 11,099,411.76
  4. Step 4: Simplify right side
    20,392,290.66x = 312,360,797,147,398.94
  5. Step 5: Solve for x
    x = 312,360,797,147,398.94/20,392,290.66
  6. Step 6: Final answer
    x = 15,317,592.44

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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.