Finding the Fourth Proportional to 81,862,056.09, 122,728,310.06 and 30,738,381.21
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Solution
The fourth proportional to 81,862,056.09, 122,728,310.06 and 30,738,381.21 is: 46,083,249.80
Step by Step Solution
- Step 1: Write the proportion equation
81,862,056.09 : 122,728,310.06 = 30,738,381.21 : x - Step 2: Convert to fraction form
81,862,056.09/122,728,310.06 = 30,738,381.21/x - Step 3: Cross multiply
81,862,056.09x = 122,728,310.06 × 30,738,381.21 - Step 4: Simplify right side
81,862,056.09x = 3,772,469,579,729,666.50 - Step 5: Solve for x
x = 3,772,469,579,729,666.50/81,862,056.09 - Step 6: Final answer
x = 46,083,249.80
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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.