Finding the Fourth Proportional to 7,695,005.20, 11,543,544.60 and 2,647,862.80
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Solution
The fourth proportional to 7,695,005.20, 11,543,544.60 and 2,647,862.80 is: 3,972,150.96
Step by Step Solution
- Step 1: Write the proportion equation
7,695,005.20 : 11,543,544.60 = 2,647,862.80 : x - Step 2: Convert to fraction form
7,695,005.20/11,543,544.60 = 2,647,862.80/x - Step 3: Cross multiply
7,695,005.20x = 11,543,544.60 × 2,647,862.80 - Step 4: Simplify right side
7,695,005.20x = 30,565,722,326,480.88 - Step 5: Solve for x
x = 30,565,722,326,480.88/7,695,005.20 - Step 6: Final answer
x = 3,972,150.96
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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.