Finding the Fourth Proportional to 252,660,201.70, 378,990,302.55 and 154,449,904.90
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Solution
The fourth proportional to 252,660,201.70, 378,990,302.55 and 154,449,904.90 is: 231,674,857.35
Step by Step Solution
- Step 1: Write the proportion equation
252,660,201.70 : 378,990,302.55 = 154,449,904.90 : x - Step 2: Convert to fraction form
252,660,201.70/378,990,302.55 = 154,449,904.90/x - Step 3: Cross multiply
252,660,201.70x = 378,990,302.55 × 154,449,904.90 - Step 4: Simplify right side
252,660,201.70x = 58,535,016,186,869,728 - Step 5: Solve for x
x = 58,535,016,186,869,728/252,660,201.70 - Step 6: Final answer
x = 231,674,857.35
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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.