Finding the Fourth Proportional to 18,995,865.92, 28,493,399.28 and 4,619,007.44
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Solution
The fourth proportional to 18,995,865.92, 28,493,399.28 and 4,619,007.44 is: 6,928,413.99
Step by Step Solution
- Step 1: Write the proportion equation
18,995,865.92 : 28,493,399.28 = 4,619,007.44 : x - Step 2: Convert to fraction form
18,995,865.92/28,493,399.28 = 4,619,007.44/x - Step 3: Cross multiply
18,995,865.92x = 28,493,399.28 × 4,619,007.44 - Step 4: Simplify right side
18,995,865.92x = 131,611,223,265,210.66 - Step 5: Solve for x
x = 131,611,223,265,210.66/18,995,865.92 - Step 6: Final answer
x = 6,928,413.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.