Home / 8,278,912.40-12,417,390.65-2,214,114.20

Finding the Fourth Proportional to 8,278,912.40, 12,417,390.65 and 2,214,114.20

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Solution

The fourth proportional to 8,278,912.40, 12,417,390.65 and 2,214,114.20 is: 3,320,909.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278,912.40 : 12,417,390.65 = 2,214,114.20 : x
  2. Step 2: Convert to fraction form
    8,278,912.40/12,417,390.65 = 2,214,114.20/x
  3. Step 3: Cross multiply
    8,278,912.40x = 12,417,390.65 × 2,214,114.20
  4. Step 4: Simplify right side
    8,278,912.40x = 27,493,520,946,822.85
  5. Step 5: Solve for x
    x = 27,493,520,946,822.85/8,278,912.40
  6. Step 6: Final answer
    x = 3,320,909.76

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1.5x scale

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.