Home / 8,309,819.20-12,457,730.40-4,320,731.20

Finding the Fourth Proportional to 8,309,819.20, 12,457,730.40 and 4,320,731.20

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Solution

The fourth proportional to 8,309,819.20, 12,457,730.40 and 4,320,731.20 is: 6,477,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,819.20 : 12,457,730.40 = 4,320,731.20 : x
  2. Step 2: Convert to fraction form
    8,309,819.20/12,457,730.40 = 4,320,731.20/x
  3. Step 3: Cross multiply
    8,309,819.20x = 12,457,730.40 × 4,320,731.20
  4. Step 4: Simplify right side
    8,309,819.20x = 53,826,504,420,468.48
  5. Step 5: Solve for x
    x = 53,826,504,420,468.48/8,309,819.20
  6. Step 6: Final answer
    x = 6,477,457.95

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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.