Finding the Fourth Proportional to 190,833,149.40, 263,360,995.18 and 143,707,078.92
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Solution
The fourth proportional to 190,833,149.40, 263,360,995.18 and 143,707,078.92 is: 198,324,239.99
Step by Step Solution
- Step 1: Write the proportion equation
190,833,149.40 : 263,360,995.18 = 143,707,078.92 : x - Step 2: Convert to fraction form
190,833,149.40/263,360,995.18 = 143,707,078.92/x - Step 3: Cross multiply
190,833,149.40x = 263,360,995.18 × 143,707,078.92 - Step 4: Simplify right side
190,833,149.40x = 37,846,839,318,782,000 - Step 5: Solve for x
x = 37,846,839,318,782,000/190,833,149.40 - Step 6: Final answer
x = 198,324,239.99
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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.