Finding the Fourth Proportional to 8,853,201.60, 12,217,252.32 and 5,415,190.08
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Solution
The fourth proportional to 8,853,201.60, 12,217,252.32 and 5,415,190.08 is: 7,472,860.84
Step by Step Solution
- Step 1: Write the proportion equation
8,853,201.60 : 12,217,252.32 = 5,415,190.08 : x - Step 2: Convert to fraction form
8,853,201.60/12,217,252.32 = 5,415,190.08/x - Step 3: Cross multiply
8,853,201.60x = 12,217,252.32 × 5,415,190.08 - Step 4: Simplify right side
8,853,201.60x = 66,158,743,568,120.98 - Step 5: Solve for x
x = 66,158,743,568,120.98/8,853,201.60 - Step 6: Final answer
x = 7,472,860.84
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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.