Finding the Fourth Proportional to 13,337,218.94, 18,405,381.48 and 7,225,647.44
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Solution
The fourth proportional to 13,337,218.94, 18,405,381.48 and 7,225,647.44 is: 9,971,403.95
Step by Step Solution
- Step 1: Write the proportion equation
13,337,218.94 : 18,405,381.48 = 7,225,647.44 : x - Step 2: Convert to fraction form
13,337,218.94/18,405,381.48 = 7,225,647.44/x - Step 3: Cross multiply
13,337,218.94x = 18,405,381.48 × 7,225,647.44 - Step 4: Simplify right side
13,337,218.94x = 132,990,797,573,185.42 - Step 5: Solve for x
x = 132,990,797,573,185.42/13,337,218.94 - Step 6: Final answer
x = 9,971,403.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.