Finding the Fourth Proportional to 664,306,324.20, 996,459,486.30 and 276,407,538.30
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Solution
The fourth proportional to 664,306,324.20, 996,459,486.30 and 276,407,538.30 is: 414,611,307.45
Step by Step Solution
- Step 1: Write the proportion equation
664,306,324.20 : 996,459,486.30 = 276,407,538.30 : x - Step 2: Convert to fraction form
664,306,324.20/996,459,486.30 = 276,407,538.30/x - Step 3: Cross multiply
664,306,324.20x = 996,459,486.30 × 276,407,538.30 - Step 4: Simplify right side
664,306,324.20x = 275,428,913,623,865,568 - Step 5: Solve for x
x = 275,428,913,623,865,568/664,306,324.20 - Step 6: Final answer
x = 414,611,307.45
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Double scale
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Similar ratio
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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.