Finding the Fourth Proportional to 3,941,643.97, 5,438,439.26 and 2,309,173.76
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Solution
The fourth proportional to 3,941,643.97, 5,438,439.26 and 2,309,173.76 is: 3,186,056.72
Step by Step Solution
- Step 1: Write the proportion equation
3,941,643.97 : 5,438,439.26 = 2,309,173.76 : x - Step 2: Convert to fraction form
3,941,643.97/5,438,439.26 = 2,309,173.76/x - Step 3: Cross multiply
3,941,643.97x = 5,438,439.26 × 2,309,173.76 - Step 4: Simplify right side
3,941,643.97x = 12,558,301,258,244.55 - Step 5: Solve for x
x = 12,558,301,258,244.55/3,941,643.97 - Step 6: Final answer
x = 3,186,056.72
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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.