Finding the Fourth Proportional to 275,319,754.30, 412,979,631.45 and 207,295,306.30
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Solution
The fourth proportional to 275,319,754.30, 412,979,631.45 and 207,295,306.30 is: 310,942,959.45
Step by Step Solution
- Step 1: Write the proportion equation
275,319,754.30 : 412,979,631.45 = 207,295,306.30 : x - Step 2: Convert to fraction form
275,319,754.30/412,979,631.45 = 207,295,306.30/x - Step 3: Cross multiply
275,319,754.30x = 412,979,631.45 × 207,295,306.30 - Step 4: Simplify right side
275,319,754.30x = 85,608,739,197,088,864 - Step 5: Solve for x
x = 85,608,739,197,088,864/275,319,754.30 - Step 6: Final answer
x = 310,942,959.45
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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.