Finding the Fourth Proportional to 8,085,378.60, 12,128,067.90 and 3,296,504.70
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Solution
The fourth proportional to 8,085,378.60, 12,128,067.90 and 3,296,504.70 is: 4,944,757.05
Step by Step Solution
- Step 1: Write the proportion equation
8,085,378.60 : 12,128,067.90 = 3,296,504.70 : x - Step 2: Convert to fraction form
8,085,378.60/12,128,067.90 = 3,296,504.70/x - Step 3: Cross multiply
8,085,378.60x = 12,128,067.90 × 3,296,504.70 - Step 4: Simplify right side
8,085,378.60x = 39,980,232,834,269.13 - Step 5: Solve for x
x = 39,980,232,834,269.13/8,085,378.60 - Step 6: Final answer
x = 4,944,757.05
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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.