Finding the Fourth Proportional to 209,124,321.08, 288,589,970.42 and 115,036,447.19
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Solution
The fourth proportional to 209,124,321.08, 288,589,970.42 and 115,036,447.19 is: 158,749,421.01
Step by Step Solution
- Step 1: Write the proportion equation
209,124,321.08 : 288,589,970.42 = 115,036,447.19 : x - Step 2: Convert to fraction form
209,124,321.08/288,589,970.42 = 115,036,447.19/x - Step 3: Cross multiply
209,124,321.08x = 288,589,970.42 × 115,036,447.19 - Step 4: Simplify right side
209,124,321.08x = 33,198,364,889,765,864 - Step 5: Solve for x
x = 33,198,364,889,765,864/209,124,321.08 - Step 6: Final answer
x = 158,749,421.01
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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.