Finding the Fourth Proportional to 80,851,608.90, 121,277,413.35 and 68,097,024.90
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Solution
The fourth proportional to 80,851,608.90, 121,277,413.35 and 68,097,024.90 is: 102,145,537.35
Step by Step Solution
- Step 1: Write the proportion equation
80,851,608.90 : 121,277,413.35 = 68,097,024.90 : x - Step 2: Convert to fraction form
80,851,608.90/121,277,413.35 = 68,097,024.90/x - Step 3: Cross multiply
80,851,608.90x = 121,277,413.35 × 68,097,024.90 - Step 4: Simplify right side
80,851,608.90x = 8,258,631,036,702,543 - Step 5: Solve for x
x = 8,258,631,036,702,543/80,851,608.90 - Step 6: Final answer
x = 102,145,537.35
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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.