Finding the Fourth Proportional to 355,318,660.80, 532,977,991.20 and 299,198,491.20
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Solution
The fourth proportional to 355,318,660.80, 532,977,991.20 and 299,198,491.20 is: 448,797,736.80
Step by Step Solution
- Step 1: Write the proportion equation
355,318,660.80 : 532,977,991.20 = 299,198,491.20 : x - Step 2: Convert to fraction form
355,318,660.80/532,977,991.20 = 299,198,491.20/x - Step 3: Cross multiply
355,318,660.80x = 532,977,991.20 × 299,198,491.20 - Step 4: Simplify right side
355,318,660.80x = 159,466,210,809,846,880 - Step 5: Solve for x
x = 159,466,210,809,846,880/355,318,660.80 - Step 6: Final answer
x = 448,797,736.80
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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.