Finding the Fourth Proportional to 6,143,619.62, 8,478,198.74 and 3,427,365.62
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Solution
The fourth proportional to 6,143,619.62, 8,478,198.74 and 3,427,365.62 is: 4,729,766.60
Step by Step Solution
- Step 1: Write the proportion equation
6,143,619.62 : 8,478,198.74 = 3,427,365.62 : x - Step 2: Convert to fraction form
6,143,619.62/8,478,198.74 = 3,427,365.62/x - Step 3: Cross multiply
6,143,619.62x = 8,478,198.74 × 3,427,365.62 - Step 4: Simplify right side
6,143,619.62x = 29,057,886,881,003.32 - Step 5: Solve for x
x = 29,057,886,881,003.32/6,143,619.62 - Step 6: Final answer
x = 4,729,766.60
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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.