Finding the Fourth Proportional to 201,749,304.91, 278,405,438.64 and 112,436,496.62
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Solution
The fourth proportional to 201,749,304.91, 278,405,438.64 and 112,436,496.62 is: 155,157,571.30
Step by Step Solution
- Step 1: Write the proportion equation
201,749,304.91 : 278,405,438.64 = 112,436,496.62 : x - Step 2: Convert to fraction form
201,749,304.91/278,405,438.64 = 112,436,496.62/x - Step 3: Cross multiply
201,749,304.91x = 278,405,438.64 × 112,436,496.62 - Step 4: Simplify right side
201,749,304.91x = 31,302,932,161,440,208 - Step 5: Solve for x
x = 31,302,932,161,440,208/201,749,304.91 - Step 6: Final answer
x = 155,157,571.30
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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.