Finding the Fourth Proportional to 5,381,860.70, 7,428,767.19 and 3,207,085.94
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Solution
The fourth proportional to 5,381,860.70, 7,428,767.19 and 3,207,085.94 is: 4,426,850.89
Step by Step Solution
- Step 1: Write the proportion equation
5,381,860.70 : 7,428,767.19 = 3,207,085.94 : x - Step 2: Convert to fraction form
5,381,860.70/7,428,767.19 = 3,207,085.94/x - Step 3: Cross multiply
5,381,860.70x = 7,428,767.19 × 3,207,085.94 - Step 4: Simplify right side
5,381,860.70x = 23,824,694,806,582.31 - Step 5: Solve for x
x = 23,824,694,806,582.31/5,381,860.70 - Step 6: Final answer
x = 4,426,850.89
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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.