Home / 3,120,738.36-4,684,840.02-1,859,160.12

Finding the Fourth Proportional to 3,120,738.36, 4,684,840.02 and 1,859,160.12

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Solution

The fourth proportional to 3,120,738.36, 4,684,840.02 and 1,859,160.12 is: 2,790,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,738.36 : 4,684,840.02 = 1,859,160.12 : x
  2. Step 2: Convert to fraction form
    3,120,738.36/4,684,840.02 = 1,859,160.12/x
  3. Step 3: Cross multiply
    3,120,738.36x = 4,684,840.02 × 1,859,160.12
  4. Step 4: Simplify right side
    3,120,738.36x = 8,709,867,733,764.00
  5. Step 5: Solve for x
    x = 8,709,867,733,764.00/3,120,738.36
  6. Step 6: Final answer
    x = 2,790,963.78

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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.