Finding the Fourth Proportional to 665,696,543.70, 998,544,815.55 and 277,797,757.80
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Solution
The fourth proportional to 665,696,543.70, 998,544,815.55 and 277,797,757.80 is: 416,696,636.70
Step by Step Solution
- Step 1: Write the proportion equation
665,696,543.70 : 998,544,815.55 = 277,797,757.80 : x - Step 2: Convert to fraction form
665,696,543.70/998,544,815.55 = 277,797,757.80/x - Step 3: Cross multiply
665,696,543.70x = 998,544,815.55 × 277,797,757.80 - Step 4: Simplify right side
665,696,543.70x = 277,393,510,822,604,576 - Step 5: Solve for x
x = 277,393,510,822,604,576/665,696,543.70 - Step 6: Final answer
x = 416,696,636.70
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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.