Finding the Fourth Proportional to 372,121,413.07, 513,511,818.56 and 202,572,125.64
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Solution
The fourth proportional to 372,121,413.07, 513,511,818.56 and 202,572,125.64 is: 279,540,969.62
Step by Step Solution
- Step 1: Write the proportion equation
372,121,413.07 : 513,511,818.56 = 202,572,125.64 : x - Step 2: Convert to fraction form
372,121,413.07/513,511,818.56 = 202,572,125.64/x - Step 3: Cross multiply
372,121,413.07x = 513,511,818.56 × 202,572,125.64 - Step 4: Simplify right side
372,121,413.07x = 104,023,180,626,961,200 - Step 5: Solve for x
x = 104,023,180,626,961,200/372,121,413.07 - Step 6: Final answer
x = 279,540,969.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.