Finding the Fourth Proportional to 21,580,344.99, 29,780,528.54 and 11,790,578.97
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Solution
The fourth proportional to 21,580,344.99, 29,780,528.54 and 11,790,578.97 is: 16,270,809.09
Step by Step Solution
- Step 1: Write the proportion equation
21,580,344.99 : 29,780,528.54 = 11,790,578.97 : x - Step 2: Convert to fraction form
21,580,344.99/29,780,528.54 = 11,790,578.97/x - Step 3: Cross multiply
21,580,344.99x = 29,780,528.54 × 11,790,578.97 - Step 4: Simplify right side
21,580,344.99x = 351,129,673,460,255.94 - Step 5: Solve for x
x = 351,129,673,460,255.94/21,580,344.99 - Step 6: Final answer
x = 16,270,809.09
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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.