Finding the Fourth Proportional to 396,290,413.80, 594,435,620.70 and 370,781,245.80
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Solution
The fourth proportional to 396,290,413.80, 594,435,620.70 and 370,781,245.80 is: 556,171,868.70
Step by Step Solution
- Step 1: Write the proportion equation
396,290,413.80 : 594,435,620.70 = 370,781,245.80 : x - Step 2: Convert to fraction form
396,290,413.80/594,435,620.70 = 370,781,245.80/x - Step 3: Cross multiply
396,290,413.80x = 594,435,620.70 × 370,781,245.80 - Step 4: Simplify right side
396,290,413.80x = 220,405,579,991,042,304 - Step 5: Solve for x
x = 220,405,579,991,042,304/396,290,413.80 - Step 6: Final answer
x = 556,171,868.70
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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.