Finding the Fourth Proportional to 3,979,656.52, 5,492,812.38 and 2,529,069.08
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Solution
The fourth proportional to 3,979,656.52, 5,492,812.38 and 2,529,069.08 is: 3,490,678.63
Step by Step Solution
- Step 1: Write the proportion equation
3,979,656.52 : 5,492,812.38 = 2,529,069.08 : x - Step 2: Convert to fraction form
3,979,656.52/5,492,812.38 = 2,529,069.08/x - Step 3: Cross multiply
3,979,656.52x = 5,492,812.38 × 2,529,069.08 - Step 4: Simplify right side
3,979,656.52x = 13,891,701,952,499.21 - Step 5: Solve for x
x = 13,891,701,952,499.21/3,979,656.52 - Step 6: Final answer
x = 3,490,678.63
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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.