Finding the Fourth Proportional to 682,245,502.49, 941,498,794.92 and 368,979,716.45
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Solution
The fourth proportional to 682,245,502.49, 941,498,794.92 and 368,979,716.45 is: 509,192,009.50
Step by Step Solution
- Step 1: Write the proportion equation
682,245,502.49 : 941,498,794.92 = 368,979,716.45 : x - Step 2: Convert to fraction form
682,245,502.49/941,498,794.92 = 368,979,716.45/x - Step 3: Cross multiply
682,245,502.49x = 941,498,794.92 × 368,979,716.45 - Step 4: Simplify right side
682,245,502.49x = 347,393,958,387,598,272 - Step 5: Solve for x
x = 347,393,958,387,598,272/682,245,502.49 - Step 6: Final answer
x = 509,192,009.50
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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.