Finding the Fourth Proportional to 7,759,413.28, 10,708,322.64 and 4,321,655.20
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Solution
The fourth proportional to 7,759,413.28, 10,708,322.64 and 4,321,655.20 is: 5,964,069.26
Step by Step Solution
- Step 1: Write the proportion equation
7,759,413.28 : 10,708,322.64 = 4,321,655.20 : x - Step 2: Convert to fraction form
7,759,413.28/10,708,322.64 = 4,321,655.20/x - Step 3: Cross multiply
7,759,413.28x = 10,708,322.64 × 4,321,655.20 - Step 4: Simplify right side
7,759,413.28x = 46,277,678,220,433.73 - Step 5: Solve for x
x = 46,277,678,220,433.73/7,759,413.28 - Step 6: Final answer
x = 5,964,069.26
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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.