Finding the Fourth Proportional to 5,419,549.11, 8,129,327.18 and 1,376,340.15
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Solution
The fourth proportional to 5,419,549.11, 8,129,327.18 and 1,376,340.15 is: 2,064,511.12
Step by Step Solution
- Step 1: Write the proportion equation
5,419,549.11 : 8,129,327.18 = 1,376,340.15 : x - Step 2: Convert to fraction form
5,419,549.11/8,129,327.18 = 1,376,340.15/x - Step 3: Cross multiply
5,419,549.11x = 8,129,327.18 × 1,376,340.15 - Step 4: Simplify right side
5,419,549.11x = 11,188,719,383,438.58 - Step 5: Solve for x
x = 11,188,719,383,438.58/5,419,549.11 - Step 6: Final answer
x = 2,064,511.12
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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.