Finding the Fourth Proportional to 7,342,879.80, 11,018,256.30 and 3,083,478.60
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Solution
The fourth proportional to 7,342,879.80, 11,018,256.30 and 3,083,478.60 is: 4,626,870.99
Step by Step Solution
- Step 1: Write the proportion equation
7,342,879.80 : 11,018,256.30 = 3,083,478.60 : x - Step 2: Convert to fraction form
7,342,879.80/11,018,256.30 = 3,083,478.60/x - Step 3: Cross multiply
7,342,879.80x = 11,018,256.30 × 3,083,478.60 - Step 4: Simplify right side
7,342,879.80x = 33,974,557,510,365.18 - Step 5: Solve for x
x = 33,974,557,510,365.18/7,342,879.80 - Step 6: Final answer
x = 4,626,870.99
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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.