Home / 25,880,930.60-38,796,512.70-20,120,469.80

Finding the Fourth Proportional to 25,880,930.60, 38,796,512.70 and 20,120,469.80

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Solution

The fourth proportional to 25,880,930.60, 38,796,512.70 and 20,120,469.80 is: 30,161,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880,930.60 : 38,796,512.70 = 20,120,469.80 : x
  2. Step 2: Convert to fraction form
    25,880,930.60/38,796,512.70 = 20,120,469.80/x
  3. Step 3: Cross multiply
    25,880,930.60x = 38,796,512.70 × 20,120,469.80
  4. Step 4: Simplify right side
    25,880,930.60x = 780,604,062,125,666.50
  5. Step 5: Solve for x
    x = 780,604,062,125,666.50/25,880,930.60
  6. Step 6: Final answer
    x = 30,161,359.89

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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.