Home / 15,389,393.26-21,237,383.37-8,420,725.53

Finding the Fourth Proportional to 15,389,393.26, 21,237,383.37 and 8,420,725.53

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Solution

The fourth proportional to 15,389,393.26, 21,237,383.37 and 8,420,725.53 is: 11,620,612.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389,393.26 : 21,237,383.37 = 8,420,725.53 : x
  2. Step 2: Convert to fraction form
    15,389,393.26/21,237,383.37 = 8,420,725.53/x
  3. Step 3: Cross multiply
    15,389,393.26x = 21,237,383.37 × 8,420,725.53
  4. Step 4: Simplify right side
    15,389,393.26x = 178,834,176,185,865.88
  5. Step 5: Solve for x
    x = 178,834,176,185,865.88/15,389,393.26
  6. Step 6: Final answer
    x = 11,620,612.53

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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.