Finding the Fourth Proportional to 1,176,336,165.20, 1,764,504,247.80 and 531,363,621.20
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Solution
The fourth proportional to 1,176,336,165.20, 1,764,504,247.80 and 531,363,621.20 is: 797,045,431.80
Step by Step Solution
- Step 1: Write the proportion equation
1,176,336,165.20 : 1,764,504,247.80 = 531,363,621.20 : x - Step 2: Convert to fraction form
1,176,336,165.20/1,764,504,247.80 = 531,363,621.20/x - Step 3: Cross multiply
1,176,336,165.20x = 1,764,504,247.80 × 531,363,621.20 - Step 4: Simplify right side
1,176,336,165.20x = 937,593,366,733,790,080 - Step 5: Solve for x
x = 937,593,366,733,790,080/1,176,336,165.20 - Step 6: Final answer
x = 797,045,431.80
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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.