Finding the Fourth Proportional to 324,731,075.12, 448,193,986.31 and 192,645,387.62
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Solution
The fourth proportional to 324,731,075.12, 448,193,986.31 and 192,645,387.62 is: 265,889,256.79
Step by Step Solution
- Step 1: Write the proportion equation
324,731,075.12 : 448,193,986.31 = 192,645,387.62 : x - Step 2: Convert to fraction form
324,731,075.12/448,193,986.31 = 192,645,387.62/x - Step 3: Cross multiply
324,731,075.12x = 448,193,986.31 × 192,645,387.62 - Step 4: Simplify right side
324,731,075.12x = 86,342,504,218,438,736 - Step 5: Solve for x
x = 86,342,504,218,438,736/324,731,075.12 - Step 6: Final answer
x = 265,889,256.79
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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.