Finding the Fourth Proportional to 5,183,678.75, 7,153,479.75 and 2,891,839.44
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Solution
The fourth proportional to 5,183,678.75, 7,153,479.75 and 2,891,839.44 is: 3,990,740.14
Step by Step Solution
- Step 1: Write the proportion equation
5,183,678.75 : 7,153,479.75 = 2,891,839.44 : x - Step 2: Convert to fraction form
5,183,678.75/7,153,479.75 = 2,891,839.44/x - Step 3: Cross multiply
5,183,678.75x = 7,153,479.75 × 2,891,839.44 - Step 4: Simplify right side
5,183,678.75x = 20,686,714,874,291.34 - Step 5: Solve for x
x = 20,686,714,874,291.34/5,183,678.75 - Step 6: Final answer
x = 3,990,740.14
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1.5x scale
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.