Finding the Fourth Proportional to 4,120,486.14, 6,181,615.07 and 1,388,305.05
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Solution
The fourth proportional to 4,120,486.14, 6,181,615.07 and 1,388,305.05 is: 2,082,756.04
Step by Step Solution
- Step 1: Write the proportion equation
4,120,486.14 : 6,181,615.07 = 1,388,305.05 : x - Step 2: Convert to fraction form
4,120,486.14/6,181,615.07 = 1,388,305.05/x - Step 3: Cross multiply
4,120,486.14x = 6,181,615.07 × 1,388,305.05 - Step 4: Simplify right side
4,120,486.14x = 8,581,967,393,920.66 - Step 5: Solve for x
x = 8,581,967,393,920.66/4,120,486.14 - Step 6: Final answer
x = 2,082,756.04
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1.5x scale
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.