Home / 12,100,512.40-18,128,650.20-9,844,435.60

Finding the Fourth Proportional to 12,100,512.40, 18,128,650.20 and 9,844,435.60

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Solution

The fourth proportional to 12,100,512.40, 18,128,650.20 and 9,844,435.60 is: 14,748,658.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100,512.40 : 18,128,650.20 = 9,844,435.60 : x
  2. Step 2: Convert to fraction form
    12,100,512.40/18,128,650.20 = 9,844,435.60/x
  3. Step 3: Cross multiply
    12,100,512.40x = 18,128,650.20 × 9,844,435.60
  4. Step 4: Simplify right side
    12,100,512.40x = 178,466,329,408,827.09
  5. Step 5: Solve for x
    x = 178,466,329,408,827.09/12,100,512.40
  6. Step 6: Final answer
    x = 14,748,658.86

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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.