Home / 605,029,999.60-907,544,999.40-398,405,738.80

Finding the Fourth Proportional to 605,029,999.60, 907,544,999.40 and 398,405,738.80

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Solution

The fourth proportional to 605,029,999.60, 907,544,999.40 and 398,405,738.80 is: 597,608,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,029,999.60 : 907,544,999.40 = 398,405,738.80 : x
  2. Step 2: Convert to fraction form
    605,029,999.60/907,544,999.40 = 398,405,738.80/x
  3. Step 3: Cross multiply
    605,029,999.60x = 907,544,999.40 × 398,405,738.80
  4. Step 4: Simplify right side
    605,029,999.60x = 361,571,135,980,202,560
  5. Step 5: Solve for x
    x = 361,571,135,980,202,560/605,029,999.60
  6. Step 6: Final answer
    x = 597,608,608.20

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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.