Finding the Fourth Proportional to 3,173,174.19, 4,382,585.80 and 2,138,898.15
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Solution
The fourth proportional to 3,173,174.19, 4,382,585.80 and 2,138,898.15 is: 2,954,109.70
Step by Step Solution
- Step 1: Write the proportion equation
3,173,174.19 : 4,382,585.80 = 2,138,898.15 : x - Step 2: Convert to fraction form
3,173,174.19/4,382,585.80 = 2,138,898.15/x - Step 3: Cross multiply
3,173,174.19x = 4,382,585.80 × 2,138,898.15 - Step 4: Simplify right side
3,173,174.19x = 9,373,904,654,489.03 - Step 5: Solve for x
x = 9,373,904,654,489.03/3,173,174.19 - Step 6: Final answer
x = 2,954,109.70
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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.