Finding the Fourth Proportional to 129,004,249.09, 193,434,989.97 and 51,202,336.45
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Solution
The fourth proportional to 129,004,249.09, 193,434,989.97 and 51,202,336.45 is: 76,775,172.19
Step by Step Solution
- Step 1: Write the proportion equation
129,004,249.09 : 193,434,989.97 = 51,202,336.45 : x - Step 2: Convert to fraction form
129,004,249.09/193,434,989.97 = 51,202,336.45/x - Step 3: Cross multiply
129,004,249.09x = 193,434,989.97 × 51,202,336.45 - Step 4: Simplify right side
129,004,249.09x = 9,904,323,437,646,316 - Step 5: Solve for x
x = 9,904,323,437,646,316/129,004,249.09 - Step 6: Final answer
x = 76,775,172.19
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.