Home / 18,219,690.94-25,143,169.79-9,959,787.65

Finding the Fourth Proportional to 18,219,690.94, 25,143,169.79 and 9,959,787.65

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Solution

The fourth proportional to 18,219,690.94, 25,143,169.79 and 9,959,787.65 is: 13,744,504.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219,690.94 : 25,143,169.79 = 9,959,787.65 : x
  2. Step 2: Convert to fraction form
    18,219,690.94/25,143,169.79 = 9,959,787.65/x
  3. Step 3: Cross multiply
    18,219,690.94x = 25,143,169.79 × 9,959,787.65
  4. Step 4: Simplify right side
    18,219,690.94x = 250,420,632,065,395.38
  5. Step 5: Solve for x
    x = 250,420,632,065,395.38/18,219,690.94
  6. Step 6: Final answer
    x = 13,744,504.93

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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.