Home / 5,487,739.20-8,231,608.80-5,179,809.60

Finding the Fourth Proportional to 5,487,739.20, 8,231,608.80 and 5,179,809.60

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Solution

The fourth proportional to 5,487,739.20, 8,231,608.80 and 5,179,809.60 is: 7,769,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487,739.20 : 8,231,608.80 = 5,179,809.60 : x
  2. Step 2: Convert to fraction form
    5,487,739.20/8,231,608.80 = 5,179,809.60/x
  3. Step 3: Cross multiply
    5,487,739.20x = 8,231,608.80 × 5,179,809.60
  4. Step 4: Simplify right side
    5,487,739.20x = 42,638,166,285,684.48
  5. Step 5: Solve for x
    x = 42,638,166,285,684.48/5,487,739.20
  6. Step 6: Final answer
    x = 7,769,714.40

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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.