Finding the Fourth Proportional to 1,021,560,198.79, 1,532,340,318.46 and 245,205,859.62
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Solution
The fourth proportional to 1,021,560,198.79, 1,532,340,318.46 and 245,205,859.62 is: 367,808,794.29
Step by Step Solution
- Step 1: Write the proportion equation
1,021,560,198.79 : 1,532,340,318.46 = 245,205,859.62 : x - Step 2: Convert to fraction form
1,021,560,198.79/1,532,340,318.46 = 245,205,859.62/x - Step 3: Cross multiply
1,021,560,198.79x = 1,532,340,318.46 × 245,205,859.62 - Step 4: Simplify right side
1,021,560,198.79x = 375,738,825,015,340,928 - Step 5: Solve for x
x = 375,738,825,015,340,928/1,021,560,198.79 - Step 6: Final answer
x = 367,808,794.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.