Finding the Fourth Proportional to 10,891,837.20, 16,337,755.80 and 6,860,758.80
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Solution
The fourth proportional to 10,891,837.20, 16,337,755.80 and 6,860,758.80 is: 10,291,138.20
Step by Step Solution
- Step 1: Write the proportion equation
10,891,837.20 : 16,337,755.80 = 6,860,758.80 : x - Step 2: Convert to fraction form
10,891,837.20/16,337,755.80 = 6,860,758.80/x - Step 3: Cross multiply
10,891,837.20x = 16,337,755.80 × 6,860,758.80 - Step 4: Simplify right side
10,891,837.20x = 112,089,401,877,101.05 - Step 5: Solve for x
x = 112,089,401,877,101.05/10,891,837.20 - Step 6: Final answer
x = 10,291,138.20
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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.