Home / 13,513,192.18-18,647,974.78-7,318,188.58

Finding the Fourth Proportional to 13,513,192.18, 18,647,974.78 and 7,318,188.58

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Solution

The fourth proportional to 13,513,192.18, 18,647,974.78 and 7,318,188.58 is: 10,098,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,192.18 : 18,647,974.78 = 7,318,188.58 : x
  2. Step 2: Convert to fraction form
    13,513,192.18/18,647,974.78 = 7,318,188.58/x
  3. Step 3: Cross multiply
    13,513,192.18x = 18,647,974.78 × 7,318,188.58
  4. Step 4: Simplify right side
    13,513,192.18x = 136,469,396,075,124.02
  5. Step 5: Solve for x
    x = 136,469,396,075,124.02/13,513,192.18
  6. Step 6: Final answer
    x = 10,098,975.45

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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.