Finding the Fourth Proportional to 20,743,694.12, 31,115,290.84 and 5,389,625
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Solution
The fourth proportional to 20,743,694.12, 31,115,290.84 and 5,389,625 is: 8,084,372.46
Step by Step Solution
- Step 1: Write the proportion equation
20,743,694.12 : 31,115,290.84 = 5,389,625 : x - Step 2: Convert to fraction form
20,743,694.12/31,115,290.84 = 5,389,625/x - Step 3: Cross multiply
20,743,694.12x = 31,115,290.84 × 5,389,625 - Step 4: Simplify right side
20,743,694.12x = 167,699,749,393,535 - Step 5: Solve for x
x = 167,699,749,393,535/20,743,694.12 - Step 6: Final answer
x = 8,084,372.46
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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.