Finding the Fourth Proportional to 181,786,811.88, 250,871,990.94 and 107,511,043.08
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Solution
The fourth proportional to 181,786,811.88, 250,871,990.94 and 107,511,043.08 is: 148,368,900.62
Step by Step Solution
- Step 1: Write the proportion equation
181,786,811.88 : 250,871,990.94 = 107,511,043.08 : x - Step 2: Convert to fraction form
181,786,811.88/250,871,990.94 = 107,511,043.08/x - Step 3: Cross multiply
181,786,811.88x = 250,871,990.94 × 107,511,043.08 - Step 4: Simplify right side
181,786,811.88x = 26,971,509,425,515,708 - Step 5: Solve for x
x = 26,971,509,425,515,708/181,786,811.88 - Step 6: Final answer
x = 148,368,900.62
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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.