Finding the Fourth Proportional to 5,645,788.19, 7,790,933.77 and 3,198,349.29
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Solution
The fourth proportional to 5,645,788.19, 7,790,933.77 and 3,198,349.29 is: 4,413,578.17
Step by Step Solution
- Step 1: Write the proportion equation
5,645,788.19 : 7,790,933.77 = 3,198,349.29 : x - Step 2: Convert to fraction form
5,645,788.19/7,790,933.77 = 3,198,349.29/x - Step 3: Cross multiply
5,645,788.19x = 7,790,933.77 × 3,198,349.29 - Step 4: Simplify right side
5,645,788.19x = 24,918,127,512,936.65 - Step 5: Solve for x
x = 24,918,127,512,936.65/5,645,788.19 - Step 6: Final answer
x = 4,413,578.17
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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.