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Finding the Fourth Proportional to 5,393,156.72, 8,089,765.31 and 1,798,913.80

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Solution

The fourth proportional to 5,393,156.72, 8,089,765.31 and 1,798,913.80 is: 2,698,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393,156.72 : 8,089,765.31 = 1,798,913.80 : x
  2. Step 2: Convert to fraction form
    5,393,156.72/8,089,765.31 = 1,798,913.80/x
  3. Step 3: Cross multiply
    5,393,156.72x = 8,089,765.31 × 1,798,913.80
  4. Step 4: Simplify right side
    5,393,156.72x = 14,552,790,439,193.15
  5. Step 5: Solve for x
    x = 14,552,790,439,193.15/5,393,156.72
  6. Step 6: Final answer
    x = 2,698,380.78

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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.