Home / 505,328,494.40-757,992,741.60-308,907,900.80

Finding the Fourth Proportional to 505,328,494.40, 757,992,741.60 and 308,907,900.80

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Solution

The fourth proportional to 505,328,494.40, 757,992,741.60 and 308,907,900.80 is: 463,361,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,328,494.40 : 757,992,741.60 = 308,907,900.80 : x
  2. Step 2: Convert to fraction form
    505,328,494.40/757,992,741.60 = 308,907,900.80/x
  3. Step 3: Cross multiply
    505,328,494.40x = 757,992,741.60 × 308,907,900.80
  4. Step 4: Simplify right side
    505,328,494.40x = 234,149,946,629,292,864
  5. Step 5: Solve for x
    x = 234,149,946,629,292,864/505,328,494.40
  6. Step 6: Final answer
    x = 463,361,851.20

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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.