Home / 20,553,359.44-28,360,031.08-11,728,781.64

Finding the Fourth Proportional to 20,553,359.44, 28,360,031.08 and 11,728,781.64

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Solution

The fourth proportional to 20,553,359.44, 28,360,031.08 and 11,728,781.64 is: 16,183,661.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553,359.44 : 28,360,031.08 = 11,728,781.64 : x
  2. Step 2: Convert to fraction form
    20,553,359.44/28,360,031.08 = 11,728,781.64/x
  3. Step 3: Cross multiply
    20,553,359.44x = 28,360,031.08 × 11,728,781.64
  4. Step 4: Simplify right side
    20,553,359.44x = 332,628,611,770,033.25
  5. Step 5: Solve for x
    x = 332,628,611,770,033.25/20,553,359.44
  6. Step 6: Final answer
    x = 16,183,661.49

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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.