Home / 13,562,257.20-18,716,261.40-7,450,839.60

Finding the Fourth Proportional to 13,562,257.20, 18,716,261.40 and 7,450,839.60

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Solution

The fourth proportional to 13,562,257.20, 18,716,261.40 and 7,450,839.60 is: 10,282,348.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562,257.20 : 18,716,261.40 = 7,450,839.60 : x
  2. Step 2: Convert to fraction form
    13,562,257.20/18,716,261.40 = 7,450,839.60/x
  3. Step 3: Cross multiply
    13,562,257.20x = 18,716,261.40 × 7,450,839.60
  4. Step 4: Simplify right side
    13,562,257.20x = 139,451,861,603,071.42
  5. Step 5: Solve for x
    x = 139,451,861,603,071.42/13,562,257.20
  6. Step 6: Final answer
    x = 10,282,348.99

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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.