Finding the Fourth Proportional to 1,008,236,576.80, 1,512,354,865.20 and 242,331,680.80
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Solution
The fourth proportional to 1,008,236,576.80, 1,512,354,865.20 and 242,331,680.80 is: 363,497,521.20
Step by Step Solution
- Step 1: Write the proportion equation
1,008,236,576.80 : 1,512,354,865.20 = 242,331,680.80 : x - Step 2: Convert to fraction form
1,008,236,576.80/1,512,354,865.20 = 242,331,680.80/x - Step 3: Cross multiply
1,008,236,576.80x = 1,512,354,865.20 × 242,331,680.80 - Step 4: Simplify right side
1,008,236,576.80x = 366,491,496,449,973,440 - Step 5: Solve for x
x = 366,491,496,449,973,440/1,008,236,576.80 - Step 6: Final answer
x = 363,497,521.20
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1.5x scale
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.