Finding the Fourth Proportional to 3,996,181.19, 5,515,235.12 and 2,620,682.12
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Solution
The fourth proportional to 3,996,181.19, 5,515,235.12 and 2,620,682.12 is: 3,616,872.55
Step by Step Solution
- Step 1: Write the proportion equation
3,996,181.19 : 5,515,235.12 = 2,620,682.12 : x - Step 2: Convert to fraction form
3,996,181.19/5,515,235.12 = 2,620,682.12/x - Step 3: Cross multiply
3,996,181.19x = 5,515,235.12 × 2,620,682.12 - Step 4: Simplify right side
3,996,181.19x = 14,453,678,039,003.88 - Step 5: Solve for x
x = 14,453,678,039,003.88/3,996,181.19 - Step 6: Final answer
x = 3,616,872.55
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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.