Finding the Fourth Proportional to 144,585,394.18, 199,522,247.83 and 78,504,379.99
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Solution
The fourth proportional to 144,585,394.18, 199,522,247.83 and 78,504,379.99 is: 108,333,005.89
Step by Step Solution
- Step 1: Write the proportion equation
144,585,394.18 : 199,522,247.83 = 78,504,379.99 : x - Step 2: Convert to fraction form
144,585,394.18/199,522,247.83 = 78,504,379.99/x - Step 3: Cross multiply
144,585,394.18x = 199,522,247.83 × 78,504,379.99 - Step 4: Simplify right side
144,585,394.18x = 15,663,370,359,410,204 - Step 5: Solve for x
x = 15,663,370,359,410,204/144,585,394.18 - Step 6: Final answer
x = 108,333,005.89
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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.