Finding the Fourth Proportional to 11,567,782.80, 17,351,674.20 and 9,720,205.20
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Solution
The fourth proportional to 11,567,782.80, 17,351,674.20 and 9,720,205.20 is: 14,580,307.80
Step by Step Solution
- Step 1: Write the proportion equation
11,567,782.80 : 17,351,674.20 = 9,720,205.20 : x - Step 2: Convert to fraction form
11,567,782.80/17,351,674.20 = 9,720,205.20/x - Step 3: Cross multiply
11,567,782.80x = 17,351,674.20 × 9,720,205.20 - Step 4: Simplify right side
11,567,782.80x = 168,661,833,787,545.81 - Step 5: Solve for x
x = 168,661,833,787,545.81/11,567,782.80 - Step 6: Final answer
x = 14,580,307.80
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1.5x scale
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.