Finding the Fourth Proportional to 5,242,814.97, 7,854,147.20 and 3,215,146.12
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Solution
The fourth proportional to 5,242,814.97, 7,854,147.20 and 3,215,146.12 is: 4,816,540.55
Step by Step Solution
- Step 1: Write the proportion equation
5,242,814.97 : 7,854,147.20 = 3,215,146.12 : x - Step 2: Convert to fraction form
5,242,814.97/7,854,147.20 = 3,215,146.12/x - Step 3: Cross multiply
5,242,814.97x = 7,854,147.20 × 3,215,146.12 - Step 4: Simplify right side
5,242,814.97x = 25,252,230,895,988.87 - Step 5: Solve for x
x = 25,252,230,895,988.87/5,242,814.97 - Step 6: Final answer
x = 4,816,540.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.