Finding the Fourth Proportional to 3,836,771.16, 5,294,725.80 and 2,117,876.64
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Solution
The fourth proportional to 3,836,771.16, 5,294,725.80 and 2,117,876.64 is: 2,922,659.61
Step by Step Solution
- Step 1: Write the proportion equation
3,836,771.16 : 5,294,725.80 = 2,117,876.64 : x - Step 2: Convert to fraction form
3,836,771.16/5,294,725.80 = 2,117,876.64/x - Step 3: Cross multiply
3,836,771.16x = 5,294,725.80 × 2,117,876.64 - Step 4: Simplify right side
3,836,771.16x = 11,213,576,087,025.31 - Step 5: Solve for x
x = 11,213,576,087,025.31/3,836,771.16 - Step 6: Final answer
x = 2,922,659.61
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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.