Home / 12,199,959.16-18,300,069.78-3,680,369.40

Finding the Fourth Proportional to 12,199,959.16, 18,300,069.78 and 3,680,369.40

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Solution

The fourth proportional to 12,199,959.16, 18,300,069.78 and 3,680,369.40 is: 5,520,593.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199,959.16 : 18,300,069.78 = 3,680,369.40 : x
  2. Step 2: Convert to fraction form
    12,199,959.16/18,300,069.78 = 3,680,369.40/x
  3. Step 3: Cross multiply
    12,199,959.16x = 18,300,069.78 × 3,680,369.40
  4. Step 4: Simplify right side
    12,199,959.16x = 67,351,016,836,176.73
  5. Step 5: Solve for x
    x = 67,351,016,836,176.73/12,199,959.16
  6. Step 6: Final answer
    x = 5,520,593.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.