Finding the Fourth Proportional to 13,381,957.68, 18,467,231.68 and 7,580,615.37
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Solution
The fourth proportional to 13,381,957.68, 18,467,231.68 and 7,580,615.37 is: 10,461,322.90
Step by Step Solution
- Step 1: Write the proportion equation
13,381,957.68 : 18,467,231.68 = 7,580,615.37 : x - Step 2: Convert to fraction form
13,381,957.68/18,467,231.68 = 7,580,615.37/x - Step 3: Cross multiply
13,381,957.68x = 18,467,231.68 × 7,580,615.37 - Step 4: Simplify right side
13,381,957.68x = 139,992,980,314,758.92 - Step 5: Solve for x
x = 139,992,980,314,758.92/13,381,957.68 - Step 6: Final answer
x = 10,461,322.90
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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.