Home / 8,203,421.40-12,305,132.10-2,811,348.60

Finding the Fourth Proportional to 8,203,421.40, 12,305,132.10 and 2,811,348.60

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Solution

The fourth proportional to 8,203,421.40, 12,305,132.10 and 2,811,348.60 is: 4,217,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,203,421.40 : 12,305,132.10 = 2,811,348.60 : x
  2. Step 2: Convert to fraction form
    8,203,421.40/12,305,132.10 = 2,811,348.60/x
  3. Step 3: Cross multiply
    8,203,421.40x = 12,305,132.10 × 2,811,348.60
  4. Step 4: Simplify right side
    8,203,421.40x = 34,594,015,902,150.06
  5. Step 5: Solve for x
    x = 34,594,015,902,150.06/8,203,421.40
  6. Step 6: Final answer
    x = 4,217,022.90

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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.