Finding the Fourth Proportional to 28,647,893.12, 42,973,025.28 and 8,453,135.12
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Solution
The fourth proportional to 28,647,893.12, 42,973,025.28 and 8,453,135.12 is: 12,680,052.52
Step by Step Solution
- Step 1: Write the proportion equation
28,647,893.12 : 42,973,025.28 = 8,453,135.12 : x - Step 2: Convert to fraction form
28,647,893.12/42,973,025.28 = 8,453,135.12/x - Step 3: Cross multiply
28,647,893.12x = 42,973,025.28 × 8,453,135.12 - Step 4: Simplify right side
28,647,893.12x = 363,256,789,207,015.81 - Step 5: Solve for x
x = 363,256,789,207,015.81/28,647,893.12 - Step 6: Final answer
x = 12,680,052.52
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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.