Home / 13,081,715.12-18,052,766.92-7,281,866.98

Finding the Fourth Proportional to 13,081,715.12, 18,052,766.92 and 7,281,866.98

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Solution

The fourth proportional to 13,081,715.12, 18,052,766.92 and 7,281,866.98 is: 10,048,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081,715.12 : 18,052,766.92 = 7,281,866.98 : x
  2. Step 2: Convert to fraction form
    13,081,715.12/18,052,766.92 = 7,281,866.98/x
  3. Step 3: Cross multiply
    13,081,715.12x = 18,052,766.92 × 7,281,866.98
  4. Step 4: Simplify right side
    13,081,715.12x = 131,457,847,297,704.48
  5. Step 5: Solve for x
    x = 131,457,847,297,704.48/13,081,715.12
  6. Step 6: Final answer
    x = 10,048,976.46

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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.