Finding the Fourth Proportional to 3,819,138.67, 5,270,549.95 and 2,187,861.31
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Solution
The fourth proportional to 3,819,138.67, 5,270,549.95 and 2,187,861.31 is: 3,019,327.99
Step by Step Solution
- Step 1: Write the proportion equation
3,819,138.67 : 5,270,549.95 = 2,187,861.31 : x - Step 2: Convert to fraction form
3,819,138.67/5,270,549.95 = 2,187,861.31/x - Step 3: Cross multiply
3,819,138.67x = 5,270,549.95 × 2,187,861.31 - Step 4: Simplify right side
3,819,138.67x = 11,531,232,285,396.88 - Step 5: Solve for x
x = 11,531,232,285,396.88/3,819,138.67 - Step 6: Final answer
x = 3,019,327.99
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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.