Finding the Fourth Proportional to 209,124,322.58, 288,589,972.49 and 115,036,448.69
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Solution
The fourth proportional to 209,124,322.58, 288,589,972.49 and 115,036,448.69 is: 158,749,423.08
Step by Step Solution
- Step 1: Write the proportion equation
209,124,322.58 : 288,589,972.49 = 115,036,448.69 : x - Step 2: Convert to fraction form
209,124,322.58/288,589,972.49 = 115,036,448.69/x - Step 3: Cross multiply
209,124,322.58x = 288,589,972.49 × 115,036,448.69 - Step 4: Simplify right side
209,124,322.58x = 33,198,365,560,776,268 - Step 5: Solve for x
x = 33,198,365,560,776,268/209,124,322.58 - Step 6: Final answer
x = 158,749,423.08
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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.