Finding the Fourth Proportional to 664,341,765.20, 996,512,647.80 and 276,035,541.20
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Solution
The fourth proportional to 664,341,765.20, 996,512,647.80 and 276,035,541.20 is: 414,053,311.80
Step by Step Solution
- Step 1: Write the proportion equation
664,341,765.20 : 996,512,647.80 = 276,035,541.20 : x - Step 2: Convert to fraction form
664,341,765.20/996,512,647.80 = 276,035,541.20/x - Step 3: Cross multiply
664,341,765.20x = 996,512,647.80 × 276,035,541.20 - Step 4: Simplify right side
664,341,765.20x = 275,072,908,048,117,952 - Step 5: Solve for x
x = 275,072,908,048,117,952/664,341,765.20 - Step 6: Final answer
x = 414,053,311.80
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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.