Finding the Fourth Proportional to 20,032,247.98, 29,879,948.26 and 18,193,233.77
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Solution
The fourth proportional to 20,032,247.98, 29,879,948.26 and 18,193,233.77 is: 27,136,888.69
Step by Step Solution
- Step 1: Write the proportion equation
20,032,247.98 : 29,879,948.26 = 18,193,233.77 : x - Step 2: Convert to fraction form
20,032,247.98/29,879,948.26 = 18,193,233.77/x - Step 3: Cross multiply
20,032,247.98x = 29,879,948.26 × 18,193,233.77 - Step 4: Simplify right side
20,032,247.98x = 543,612,883,685,859.56 - Step 5: Solve for x
x = 543,612,883,685,859.56/20,032,247.98 - Step 6: Final answer
x = 27,136,888.69
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.