Finding the Fourth Proportional to 3,860,144.80, 5,327,638.68 and 2,141,818.90
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Solution
The fourth proportional to 3,860,144.80, 5,327,638.68 and 2,141,818.90 is: 2,956,064.55
Step by Step Solution
- Step 1: Write the proportion equation
3,860,144.80 : 5,327,638.68 = 2,141,818.90 : x - Step 2: Convert to fraction form
3,860,144.80/5,327,638.68 = 2,141,818.90/x - Step 3: Cross multiply
3,860,144.80x = 5,327,638.68 × 2,141,818.90 - Step 4: Simplify right side
3,860,144.80x = 11,410,837,217,195.05 - Step 5: Solve for x
x = 11,410,837,217,195.05/3,860,144.80 - Step 6: Final answer
x = 2,956,064.55
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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.