Finding the Fourth Proportional to 308,345,195.49, 425,534,366.81 and 174,394,986.99
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Solution
The fourth proportional to 308,345,195.49, 425,534,366.81 and 174,394,986.99 is: 240,675,260.87
Step by Step Solution
- Step 1: Write the proportion equation
308,345,195.49 : 425,534,366.81 = 174,394,986.99 : x - Step 2: Convert to fraction form
308,345,195.49/425,534,366.81 = 174,394,986.99/x - Step 3: Cross multiply
308,345,195.49x = 425,534,366.81 × 174,394,986.99 - Step 4: Simplify right side
308,345,195.49x = 74,211,060,362,468,080 - Step 5: Solve for x
x = 74,211,060,362,468,080/308,345,195.49 - Step 6: Final answer
x = 240,675,260.87
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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.