Finding the Fourth Proportional to 8,085,809.60, 12,128,714.40 and 3,296,935.70
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Solution
The fourth proportional to 8,085,809.60, 12,128,714.40 and 3,296,935.70 is: 4,945,403.55
Step by Step Solution
- Step 1: Write the proportion equation
8,085,809.60 : 12,128,714.40 = 3,296,935.70 : x - Step 2: Convert to fraction form
8,085,809.60/12,128,714.40 = 3,296,935.70/x - Step 3: Cross multiply
8,085,809.60x = 12,128,714.40 × 3,296,935.70 - Step 4: Simplify right side
8,085,809.60x = 39,987,591,500,464.09 - Step 5: Solve for x
x = 39,987,591,500,464.09/8,085,809.60 - Step 6: Final answer
x = 4,945,403.55
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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.