Finding the Fourth Proportional to 64,177,828.80, 96,256,413.60 and 18,728,971.20
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Solution
The fourth proportional to 64,177,828.80, 96,256,413.60 and 18,728,971.20 is: 28,090,442.32
Step by Step Solution
- Step 1: Write the proportion equation
64,177,828.80 : 96,256,413.60 = 18,728,971.20 : x - Step 2: Convert to fraction form
64,177,828.80/96,256,413.60 = 18,728,971.20/x - Step 3: Cross multiply
64,177,828.80x = 96,256,413.60 × 18,728,971.20 - Step 4: Simplify right side
64,177,828.80x = 1,802,783,598,129,688.25 - Step 5: Solve for x
x = 1,802,783,598,129,688.25/64,177,828.80 - Step 6: Final answer
x = 28,090,442.32
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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.