Finding the Fourth Proportional to 4,407,871.80, 6,611,807.70 and 4,089,007.20
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Solution
The fourth proportional to 4,407,871.80, 6,611,807.70 and 4,089,007.20 is: 6,133,510.80
Step by Step Solution
- Step 1: Write the proportion equation
4,407,871.80 : 6,611,807.70 = 4,089,007.20 : x - Step 2: Convert to fraction form
4,407,871.80/6,611,807.70 = 4,089,007.20/x - Step 3: Cross multiply
4,407,871.80x = 6,611,807.70 × 4,089,007.20 - Step 4: Simplify right side
4,407,871.80x = 27,035,729,290,315.44 - Step 5: Solve for x
x = 27,035,729,290,315.44/4,407,871.80 - Step 6: Final answer
x = 6,133,510.80
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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.