Finding the Fourth Proportional to 665,696,576.20, 998,544,864.30 and 277,797,790.30
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Solution
The fourth proportional to 665,696,576.20, 998,544,864.30 and 277,797,790.30 is: 416,696,685.45
Step by Step Solution
- Step 1: Write the proportion equation
665,696,576.20 : 998,544,864.30 = 277,797,790.30 : x - Step 2: Convert to fraction form
665,696,576.20/998,544,864.30 = 277,797,790.30/x - Step 3: Cross multiply
665,696,576.20x = 998,544,864.30 × 277,797,790.30 - Step 4: Simplify right side
665,696,576.20x = 277,393,556,817,953,344 - Step 5: Solve for x
x = 277,393,556,817,953,344/665,696,576.20 - Step 6: Final answer
x = 416,696,685.45
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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.