Finding the Fourth Proportional to 3,879,056.44, 5,353,219.74 and 2,136,852.19
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Solution
The fourth proportional to 3,879,056.44, 5,353,219.74 and 2,136,852.19 is: 2,948,923.15
Step by Step Solution
- Step 1: Write the proportion equation
3,879,056.44 : 5,353,219.74 = 2,136,852.19 : x - Step 2: Convert to fraction form
3,879,056.44/5,353,219.74 = 2,136,852.19/x - Step 3: Cross multiply
3,879,056.44x = 5,353,219.74 × 2,136,852.19 - Step 4: Simplify right side
3,879,056.44x = 11,439,039,324,970.23 - Step 5: Solve for x
x = 11,439,039,324,970.23/3,879,056.44 - Step 6: Final answer
x = 2,948,923.15
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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.