Home / 20,856,743.40-31,285,115.10-17,313,803.40

Finding the Fourth Proportional to 20,856,743.40, 31,285,115.10 and 17,313,803.40

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Solution

The fourth proportional to 20,856,743.40, 31,285,115.10 and 17,313,803.40 is: 25,970,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856,743.40 : 31,285,115.10 = 17,313,803.40 : x
  2. Step 2: Convert to fraction form
    20,856,743.40/31,285,115.10 = 17,313,803.40/x
  3. Step 3: Cross multiply
    20,856,743.40x = 31,285,115.10 × 17,313,803.40
  4. Step 4: Simplify right side
    20,856,743.40x = 541,664,332,187,771.31
  5. Step 5: Solve for x
    x = 541,664,332,187,771.31/20,856,743.40
  6. Step 6: Final answer
    x = 25,970,705.10

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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.