Finding the Fourth Proportional to 492,060,921.80, 738,091,382.70 and 396,509,433.80
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Solution
The fourth proportional to 492,060,921.80, 738,091,382.70 and 396,509,433.80 is: 594,764,150.70
Step by Step Solution
- Step 1: Write the proportion equation
492,060,921.80 : 738,091,382.70 = 396,509,433.80 : x - Step 2: Convert to fraction form
492,060,921.80/738,091,382.70 = 396,509,433.80/x - Step 3: Cross multiply
492,060,921.80x = 738,091,382.70 × 396,509,433.80 - Step 4: Simplify right side
492,060,921.80x = 292,660,196,247,036,160 - Step 5: Solve for x
x = 292,660,196,247,036,160/492,060,921.80 - Step 6: Final answer
x = 594,764,150.70
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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.