Finding the Fourth Proportional to 4,006,385.91, 5,528,817.41 and 2,170,842.75
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Solution
The fourth proportional to 4,006,385.91, 5,528,817.41 and 2,170,842.75 is: 2,995,765.62
Step by Step Solution
- Step 1: Write the proportion equation
4,006,385.91 : 5,528,817.41 = 2,170,842.75 : x - Step 2: Convert to fraction form
4,006,385.91/5,528,817.41 = 2,170,842.75/x - Step 3: Cross multiply
4,006,385.91x = 5,528,817.41 × 2,170,842.75 - Step 4: Simplify right side
4,006,385.91x = 12,002,193,179,718.06 - Step 5: Solve for x
x = 12,002,193,179,718.06/4,006,385.91 - Step 6: Final answer
x = 2,995,765.62
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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.