Home / 3,122,103.12-4,309,830.60-1,898,801.34

Finding the Fourth Proportional to 3,122,103.12, 4,309,830.60 and 1,898,801.34

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Solution

The fourth proportional to 3,122,103.12, 4,309,830.60 and 1,898,801.34 is: 2,621,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122,103.12 : 4,309,830.60 = 1,898,801.34 : x
  2. Step 2: Convert to fraction form
    3,122,103.12/4,309,830.60 = 1,898,801.34/x
  3. Step 3: Cross multiply
    3,122,103.12x = 4,309,830.60 × 1,898,801.34
  4. Step 4: Simplify right side
    3,122,103.12x = 8,183,512,118,453.00
  5. Step 5: Solve for x
    x = 8,183,512,118,453.00/3,122,103.12
  6. Step 6: Final answer
    x = 2,621,153.69

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1.5x scale

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.