Home / 13,318,839-18,380,014.20-7,207,267.50

Finding the Fourth Proportional to 13,318,839, 18,380,014.20 and 7,207,267.50

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Solution

The fourth proportional to 13,318,839, 18,380,014.20 and 7,207,267.50 is: 9,946,038.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318,839 : 18,380,014.20 = 7,207,267.50 : x
  2. Step 2: Convert to fraction form
    13,318,839/18,380,014.20 = 7,207,267.50/x
  3. Step 3: Cross multiply
    13,318,839x = 18,380,014.20 × 7,207,267.50
  4. Step 4: Simplify right side
    13,318,839x = 132,469,678,993,198.50
  5. Step 5: Solve for x
    x = 132,469,678,993,198.50/13,318,839
  6. Step 6: Final answer
    x = 9,946,038.01

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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.