Home / 12,135,616.60-18,203,424.90-6,466,912.60

Finding the Fourth Proportional to 12,135,616.60, 18,203,424.90 and 6,466,912.60

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Solution

The fourth proportional to 12,135,616.60, 18,203,424.90 and 6,466,912.60 is: 9,700,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135,616.60 : 18,203,424.90 = 6,466,912.60 : x
  2. Step 2: Convert to fraction form
    12,135,616.60/18,203,424.90 = 6,466,912.60/x
  3. Step 3: Cross multiply
    12,135,616.60x = 18,203,424.90 × 6,466,912.60
  4. Step 4: Simplify right side
    12,135,616.60x = 117,719,957,848,963.72
  5. Step 5: Solve for x
    x = 117,719,957,848,963.72/12,135,616.60
  6. Step 6: Final answer
    x = 9,700,368.90

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1.5x scale

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.