Finding the Fourth Proportional to 664,302,563.20, 996,453,844.80 and 479,679,959.80
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Solution
The fourth proportional to 664,302,563.20, 996,453,844.80 and 479,679,959.80 is: 719,519,939.70
Step by Step Solution
- Step 1: Write the proportion equation
664,302,563.20 : 996,453,844.80 = 479,679,959.80 : x - Step 2: Convert to fraction form
664,302,563.20/996,453,844.80 = 479,679,959.80/x - Step 3: Cross multiply
664,302,563.20x = 996,453,844.80 × 479,679,959.80 - Step 4: Simplify right side
664,302,563.20x = 477,978,940,216,219,456 - Step 5: Solve for x
x = 477,978,940,216,219,456/664,302,563.20 - Step 6: Final answer
x = 719,519,939.70
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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.