Finding the Fourth Proportional to 7,777,517.95, 11,665,944.61 and 2,660,405.42
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Solution
The fourth proportional to 7,777,517.95, 11,665,944.61 and 2,660,405.42 is: 3,990,494.46
Step by Step Solution
- Step 1: Write the proportion equation
7,777,517.95 : 11,665,944.61 = 2,660,405.42 : x - Step 2: Convert to fraction form
7,777,517.95/11,665,944.61 = 2,660,405.42/x - Step 3: Cross multiply
7,777,517.95x = 11,665,944.61 × 2,660,405.42 - Step 4: Simplify right side
7,777,517.95x = 31,036,142,308,782.29 - Step 5: Solve for x
x = 31,036,142,308,782.29/7,777,517.95 - Step 6: Final answer
x = 3,990,494.46
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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.