Finding the Fourth Proportional to 8,325,579.98, 11,489,552.79 and 4,654,651.21
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Solution
The fourth proportional to 8,325,579.98, 11,489,552.79 and 4,654,651.21 is: 6,423,559.78
Step by Step Solution
- Step 1: Write the proportion equation
8,325,579.98 : 11,489,552.79 = 4,654,651.21 : x - Step 2: Convert to fraction form
8,325,579.98/11,489,552.79 = 4,654,651.21/x - Step 3: Cross multiply
8,325,579.98x = 11,489,552.79 × 4,654,651.21 - Step 4: Simplify right side
8,325,579.98x = 53,479,860,738,884.61 - Step 5: Solve for x
x = 53,479,860,738,884.61/8,325,579.98 - Step 6: Final answer
x = 6,423,559.78
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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.