Home / 51,201,258.47-76,801,961.62-20,909,121.47

Finding the Fourth Proportional to 51,201,258.47, 76,801,961.62 and 20,909,121.47

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Solution

The fourth proportional to 51,201,258.47, 76,801,961.62 and 20,909,121.47 is: 31,363,712.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,201,258.47 : 76,801,961.62 = 20,909,121.47 : x
  2. Step 2: Convert to fraction form
    51,201,258.47/76,801,961.62 = 20,909,121.47/x
  3. Step 3: Cross multiply
    51,201,258.47x = 76,801,961.62 × 20,909,121.47
  4. Step 4: Simplify right side
    51,201,258.47x = 1,605,861,544,576,992
  5. Step 5: Solve for x
    x = 1,605,861,544,576,992/51,201,258.47
  6. Step 6: Final answer
    x = 31,363,712.39

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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.