Finding the Fourth Proportional to 4,920,433.08, 7,381,174.32 and 2,080,832.28
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Solution
The fourth proportional to 4,920,433.08, 7,381,174.32 and 2,080,832.28 is: 3,121,470.31
Step by Step Solution
- Step 1: Write the proportion equation
4,920,433.08 : 7,381,174.32 = 2,080,832.28 : x - Step 2: Convert to fraction form
4,920,433.08/7,381,174.32 = 2,080,832.28/x - Step 3: Cross multiply
4,920,433.08x = 7,381,174.32 × 2,080,832.28 - Step 4: Simplify right side
4,920,433.08x = 15,358,985,789,363.05 - Step 5: Solve for x
x = 15,358,985,789,363.05/4,920,433.08 - Step 6: Final answer
x = 3,121,470.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.