Home / 13,381,137.28-18,466,099.20-7,269,609.60

Finding the Fourth Proportional to 13,381,137.28, 18,466,099.20 and 7,269,609.60

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Solution

The fourth proportional to 13,381,137.28, 18,466,099.20 and 7,269,609.60 is: 10,032,131.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381,137.28 : 18,466,099.20 = 7,269,609.60 : x
  2. Step 2: Convert to fraction form
    13,381,137.28/18,466,099.20 = 7,269,609.60/x
  3. Step 3: Cross multiply
    13,381,137.28x = 18,466,099.20 × 7,269,609.60
  4. Step 4: Simplify right side
    13,381,137.28x = 134,241,332,018,872.31
  5. Step 5: Solve for x
    x = 134,241,332,018,872.31/13,381,137.28
  6. Step 6: Final answer
    x = 10,032,131.74

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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.