Finding the Fourth Proportional to 394,457,542.93, 544,219,218.75 and 227,190,453.94
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Solution
The fourth proportional to 394,457,542.93, 544,219,218.75 and 227,190,453.94 is: 313,446,690.44
Step by Step Solution
- Step 1: Write the proportion equation
394,457,542.93 : 544,219,218.75 = 227,190,453.94 : x - Step 2: Convert to fraction form
394,457,542.93/544,219,218.75 = 227,190,453.94/x - Step 3: Cross multiply
394,457,542.93x = 544,219,218.75 × 227,190,453.94 - Step 4: Simplify right side
394,457,542.93x = 123,641,411,350,684,656 - Step 5: Solve for x
x = 123,641,411,350,684,656/394,457,542.93 - Step 6: Final answer
x = 313,446,690.44
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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.