Finding the Fourth Proportional to 275,319,757.05, 412,979,635.58 and 207,295,309.05
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Solution
The fourth proportional to 275,319,757.05, 412,979,635.58 and 207,295,309.05 is: 310,942,963.58
Step by Step Solution
- Step 1: Write the proportion equation
275,319,757.05 : 412,979,635.58 = 207,295,309.05 : x - Step 2: Convert to fraction form
275,319,757.05/412,979,635.58 = 207,295,309.05/x - Step 3: Cross multiply
275,319,757.05x = 412,979,635.58 × 207,295,309.05 - Step 4: Simplify right side
275,319,757.05x = 85,608,741,187,876,000 - Step 5: Solve for x
x = 85,608,741,187,876,000/275,319,757.05 - Step 6: Final answer
x = 310,942,963.58
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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.