Home / 3,768,420.78-5,200,271.28-2,049,540.84

Finding the Fourth Proportional to 3,768,420.78, 5,200,271.28 and 2,049,540.84

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Solution

The fourth proportional to 3,768,420.78, 5,200,271.28 and 2,049,540.84 is: 2,828,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768,420.78 : 5,200,271.28 = 2,049,540.84 : x
  2. Step 2: Convert to fraction form
    3,768,420.78/5,200,271.28 = 2,049,540.84/x
  3. Step 3: Cross multiply
    3,768,420.78x = 5,200,271.28 × 2,049,540.84
  4. Step 4: Simplify right side
    3,768,420.78x = 10,658,168,367,439.08
  5. Step 5: Solve for x
    x = 10,658,168,367,439.08/3,768,420.78
  6. Step 6: Final answer
    x = 2,828,285.11

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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.