Finding the Fourth Proportional to 30,920,101.41, 46,380,125.73 and 7,891,034.09
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Solution
The fourth proportional to 30,920,101.41, 46,380,125.73 and 7,891,034.09 is: 11,836,544.40
Step by Step Solution
- Step 1: Write the proportion equation
30,920,101.41 : 46,380,125.73 = 7,891,034.09 : x - Step 2: Convert to fraction form
30,920,101.41/46,380,125.73 = 7,891,034.09/x - Step 3: Cross multiply
30,920,101.41x = 46,380,125.73 × 7,891,034.09 - Step 4: Simplify right side
30,920,101.41x = 365,987,153,085,723.94 - Step 5: Solve for x
x = 365,987,153,085,723.94/30,920,101.41 - Step 6: Final answer
x = 11,836,544.40
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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.