Finding the Fourth Proportional to 505,469,115.22, 697,533,998.36 and 282,452,629.44
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Solution
The fourth proportional to 505,469,115.22, 697,533,998.36 and 282,452,629.44 is: 389,777,151.61
Step by Step Solution
- Step 1: Write the proportion equation
505,469,115.22 : 697,533,998.36 = 282,452,629.44 : x - Step 2: Convert to fraction form
505,469,115.22/697,533,998.36 = 282,452,629.44/x - Step 3: Cross multiply
505,469,115.22x = 697,533,998.36 × 282,452,629.44 - Step 4: Simplify right side
505,469,115.22x = 197,020,311,957,090,976 - Step 5: Solve for x
x = 197,020,311,957,090,976/505,469,115.22 - Step 6: Final answer
x = 389,777,151.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.