Finding the Fourth Proportional to 489,915,016.70, 734,872,525.05 and 478,577,608.70
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Solution
The fourth proportional to 489,915,016.70, 734,872,525.05 and 478,577,608.70 is: 717,866,413.05
Step by Step Solution
- Step 1: Write the proportion equation
489,915,016.70 : 734,872,525.05 = 478,577,608.70 : x - Step 2: Convert to fraction form
489,915,016.70/734,872,525.05 = 478,577,608.70/x - Step 3: Cross multiply
489,915,016.70x = 734,872,525.05 × 478,577,608.70 - Step 4: Simplify right side
489,915,016.70x = 351,693,535,737,759,808 - Step 5: Solve for x
x = 351,693,535,737,759,808/489,915,016.70 - Step 6: Final answer
x = 717,866,413.05
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1.5x scale
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.