Home / 12,446,803.20-18,672,829.20-3,928,000.80

Finding the Fourth Proportional to 12,446,803.20, 18,672,829.20 and 3,928,000.80

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Solution

The fourth proportional to 12,446,803.20, 18,672,829.20 and 3,928,000.80 is: 5,892,829.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446,803.20 : 18,672,829.20 = 3,928,000.80 : x
  2. Step 2: Convert to fraction form
    12,446,803.20/18,672,829.20 = 3,928,000.80/x
  3. Step 3: Cross multiply
    12,446,803.20x = 18,672,829.20 × 3,928,000.80
  4. Step 4: Simplify right side
    12,446,803.20x = 73,346,888,035,863.36
  5. Step 5: Solve for x
    x = 73,346,888,035,863.36/12,446,803.20
  6. Step 6: Final answer
    x = 5,892,829.42

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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.