Home / 20,859,021.20-31,302,528.60-9,493,619.60

Finding the Fourth Proportional to 20,859,021.20, 31,302,528.60 and 9,493,619.60

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Solution

The fourth proportional to 20,859,021.20, 31,302,528.60 and 9,493,619.60 is: 14,246,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,021.20 : 31,302,528.60 = 9,493,619.60 : x
  2. Step 2: Convert to fraction form
    20,859,021.20/31,302,528.60 = 9,493,619.60/x
  3. Step 3: Cross multiply
    20,859,021.20x = 31,302,528.60 × 9,493,619.60
  4. Step 4: Simplify right side
    20,859,021.20x = 297,174,299,046,520.56
  5. Step 5: Solve for x
    x = 297,174,299,046,520.56/20,859,021.20
  6. Step 6: Final answer
    x = 14,246,799.80

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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.