Finding the Fourth Proportional to 208,841,107.86, 311,728,689.63 and 193,450,576.50
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Solution
The fourth proportional to 208,841,107.86, 311,728,689.63 and 193,450,576.50 is: 288,755,864.87
Step by Step Solution
- Step 1: Write the proportion equation
208,841,107.86 : 311,728,689.63 = 193,450,576.50 : x - Step 2: Convert to fraction form
208,841,107.86/311,728,689.63 = 193,450,576.50/x - Step 3: Cross multiply
208,841,107.86x = 311,728,689.63 × 193,450,576.50 - Step 4: Simplify right side
208,841,107.86x = 60,304,094,720,513,072 - Step 5: Solve for x
x = 60,304,094,720,513,072/208,841,107.86 - Step 6: Final answer
x = 288,755,864.87
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.