Finding the Fourth Proportional to 207,263,538.11, 311,002,904.84 and 84,531,897.47
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Solution
The fourth proportional to 207,263,538.11, 311,002,904.84 and 84,531,897.47 is: 126,841,729.64
Step by Step Solution
- Step 1: Write the proportion equation
207,263,538.11 : 311,002,904.84 = 84,531,897.47 : x - Step 2: Convert to fraction form
207,263,538.11/311,002,904.84 = 84,531,897.47/x - Step 3: Cross multiply
207,263,538.11x = 311,002,904.84 × 84,531,897.47 - Step 4: Simplify right side
207,263,538.11x = 26,289,665,665,161,892 - Step 5: Solve for x
x = 26,289,665,665,161,892/207,263,538.11 - Step 6: Final answer
x = 126,841,729.64
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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.