Finding the Fourth Proportional to 472,565,405.80, 708,848,108.70 and 408,864,413.80
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Solution
The fourth proportional to 472,565,405.80, 708,848,108.70 and 408,864,413.80 is: 613,296,620.70
Step by Step Solution
- Step 1: Write the proportion equation
472,565,405.80 : 708,848,108.70 = 408,864,413.80 : x - Step 2: Convert to fraction form
472,565,405.80/708,848,108.70 = 408,864,413.80/x - Step 3: Cross multiply
472,565,405.80x = 708,848,108.70 × 408,864,413.80 - Step 4: Simplify right side
472,565,405.80x = 289,822,766,436,864,192 - Step 5: Solve for x
x = 289,822,766,436,864,192/472,565,405.80 - Step 6: Final answer
x = 613,296,620.70
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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.