Finding the Fourth Proportional to 3,979,883.97, 5,492,388.06 and 2,261,295.63
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Solution
The fourth proportional to 3,979,883.97, 5,492,388.06 and 2,261,295.63 is: 3,120,672.16
Step by Step Solution
- Step 1: Write the proportion equation
3,979,883.97 : 5,492,388.06 = 2,261,295.63 : x - Step 2: Convert to fraction form
3,979,883.97/5,492,388.06 = 2,261,295.63/x - Step 3: Cross multiply
3,979,883.97x = 5,492,388.06 × 2,261,295.63 - Step 4: Simplify right side
3,979,883.97x = 12,419,913,118,342.18 - Step 5: Solve for x
x = 12,419,913,118,342.18/3,979,883.97 - Step 6: Final answer
x = 3,120,672.16
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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.