Home / 2,990,123.20-4,485,840.90-1,474,532.20

Finding the Fourth Proportional to 2,990,123.20, 4,485,840.90 and 1,474,532.20

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Solution

The fourth proportional to 2,990,123.20, 4,485,840.90 and 1,474,532.20 is: 2,212,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,123.20 : 4,485,840.90 = 1,474,532.20 : x
  2. Step 2: Convert to fraction form
    2,990,123.20/4,485,840.90 = 1,474,532.20/x
  3. Step 3: Cross multiply
    2,990,123.20x = 4,485,840.90 × 1,474,532.20
  4. Step 4: Simplify right side
    2,990,123.20x = 6,614,516,851,126.98
  5. Step 5: Solve for x
    x = 6,614,516,851,126.98/2,990,123.20
  6. Step 6: Final answer
    x = 2,212,121.85

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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.