Finding the Fourth Proportional to 5,019,969.12, 6,927,611.40 and 2,728,130.28
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Solution
The fourth proportional to 5,019,969.12, 6,927,611.40 and 2,728,130.28 is: 3,764,849.14
Step by Step Solution
- Step 1: Write the proportion equation
5,019,969.12 : 6,927,611.40 = 2,728,130.28 : x - Step 2: Convert to fraction form
5,019,969.12/6,927,611.40 = 2,728,130.28/x - Step 3: Cross multiply
5,019,969.12x = 6,927,611.40 × 2,728,130.28 - Step 4: Simplify right side
5,019,969.12x = 18,899,426,428,413.19 - Step 5: Solve for x
x = 18,899,426,428,413.19/5,019,969.12 - Step 6: Final answer
x = 3,764,849.14
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1.5x scale
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.