Home / 25,880,917.60-38,796,493.20-20,120,456.80

Finding the Fourth Proportional to 25,880,917.60, 38,796,493.20 and 20,120,456.80

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Solution

The fourth proportional to 25,880,917.60, 38,796,493.20 and 20,120,456.80 is: 30,161,340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880,917.60 : 38,796,493.20 = 20,120,456.80 : x
  2. Step 2: Convert to fraction form
    25,880,917.60/38,796,493.20 = 20,120,456.80/x
  3. Step 3: Cross multiply
    25,880,917.60x = 38,796,493.20 × 20,120,456.80
  4. Step 4: Simplify right side
    25,880,917.60x = 780,603,165,422,093.88
  5. Step 5: Solve for x
    x = 780,603,165,422,093.88/25,880,917.60
  6. Step 6: Final answer
    x = 30,161,340.39

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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.