Finding the Fourth Proportional to 3,880,402.11, 5,354,959.95 and 2,114,291.07
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Solution
The fourth proportional to 3,880,402.11, 5,354,959.95 and 2,114,291.07 is: 2,917,724.42
Step by Step Solution
- Step 1: Write the proportion equation
3,880,402.11 : 5,354,959.95 = 2,114,291.07 : x - Step 2: Convert to fraction form
3,880,402.11/5,354,959.95 = 2,114,291.07/x - Step 3: Cross multiply
3,880,402.11x = 5,354,959.95 × 2,114,291.07 - Step 4: Simplify right side
3,880,402.11x = 11,321,944,002,492.65 - Step 5: Solve for x
x = 11,321,944,002,492.65/3,880,402.11 - Step 6: Final answer
x = 2,917,724.42
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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.