Finding the Fourth Proportional to 3,758,458, 5,186,685.68 and 2,039,578.08
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Solution
The fourth proportional to 3,758,458, 5,186,685.68 and 2,039,578.08 is: 2,814,625.15
Step by Step Solution
- Step 1: Write the proportion equation
3,758,458 : 5,186,685.68 = 2,039,578.08 : x - Step 2: Convert to fraction form
3,758,458/5,186,685.68 = 2,039,578.08/x - Step 3: Cross multiply
3,758,458x = 5,186,685.68 × 2,039,578.08 - Step 4: Simplify right side
3,758,458x = 10,578,650,420,777.89 - Step 5: Solve for x
x = 10,578,650,420,777.89/3,758,458 - Step 6: Final answer
x = 2,814,625.15
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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.