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Finding the Fourth Proportional to 15,603,107.80, 23,404,734.60 and 5,505,728.80

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Solution

The fourth proportional to 15,603,107.80, 23,404,734.60 and 5,505,728.80 is: 8,258,618.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603,107.80 : 23,404,734.60 = 5,505,728.80 : x
  2. Step 2: Convert to fraction form
    15,603,107.80/23,404,734.60 = 5,505,728.80/x
  3. Step 3: Cross multiply
    15,603,107.80x = 23,404,734.60 × 5,505,728.80
  4. Step 4: Simplify right side
    15,603,107.80x = 128,860,121,343,576.48
  5. Step 5: Solve for x
    x = 128,860,121,343,576.48/15,603,107.80
  6. Step 6: Final answer
    x = 8,258,618.92

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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.