Finding the Fourth Proportional to 4,919,163.17, 6,788,454.48 and 2,743,847.21
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Solution
The fourth proportional to 4,919,163.17, 6,788,454.48 and 2,743,847.21 is: 3,786,514.35
Step by Step Solution
- Step 1: Write the proportion equation
4,919,163.17 : 6,788,454.48 = 2,743,847.21 : x - Step 2: Convert to fraction form
4,919,163.17/6,788,454.48 = 2,743,847.21/x - Step 3: Cross multiply
4,919,163.17x = 6,788,454.48 × 2,743,847.21 - Step 4: Simplify right side
4,919,163.17x = 18,626,481,902,131.14 - Step 5: Solve for x
x = 18,626,481,902,131.14/4,919,163.17 - Step 6: Final answer
x = 3,786,514.35
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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.