Home / 36,921,137.20-55,431,569.40-21,584,143.60

Finding the Fourth Proportional to 36,921,137.20, 55,431,569.40 and 21,584,143.60

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Solution

The fourth proportional to 36,921,137.20, 55,431,569.40 and 21,584,143.60 is: 32,405,365.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,921,137.20 : 55,431,569.40 = 21,584,143.60 : x
  2. Step 2: Convert to fraction form
    36,921,137.20/55,431,569.40 = 21,584,143.60/x
  3. Step 3: Cross multiply
    36,921,137.20x = 55,431,569.40 × 21,584,143.60
  4. Step 4: Simplify right side
    36,921,137.20x = 1,196,442,953,902,966
  5. Step 5: Solve for x
    x = 1,196,442,953,902,966/36,921,137.20
  6. Step 6: Final answer
    x = 32,405,365.72

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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.