Home / 20,984,989.44-28,959,350.94-12,166,159.80

Finding the Fourth Proportional to 20,984,989.44, 28,959,350.94 and 12,166,159.80

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Solution

The fourth proportional to 20,984,989.44, 28,959,350.94 and 12,166,159.80 is: 16,789,338.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984,989.44 : 28,959,350.94 = 12,166,159.80 : x
  2. Step 2: Convert to fraction form
    20,984,989.44/28,959,350.94 = 12,166,159.80/x
  3. Step 3: Cross multiply
    20,984,989.44x = 28,959,350.94 × 12,166,159.80
  4. Step 4: Simplify right side
    20,984,989.44x = 352,324,091,240,320.25
  5. Step 5: Solve for x
    x = 352,324,091,240,320.25/20,984,989.44
  6. Step 6: Final answer
    x = 16,789,338.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.