Finding the Fourth Proportional to 756,102,638.80, 1,134,153,958.20 and 444,890,789.20
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Solution
The fourth proportional to 756,102,638.80, 1,134,153,958.20 and 444,890,789.20 is: 667,336,183.80
Step by Step Solution
- Step 1: Write the proportion equation
756,102,638.80 : 1,134,153,958.20 = 444,890,789.20 : x - Step 2: Convert to fraction form
756,102,638.80/1,134,153,958.20 = 444,890,789.20/x - Step 3: Cross multiply
756,102,638.80x = 1,134,153,958.20 × 444,890,789.20 - Step 4: Simplify right side
756,102,638.80x = 504,574,649,537,901,824 - Step 5: Solve for x
x = 504,574,649,537,901,824/756,102,638.80 - Step 6: Final answer
x = 667,336,183.80
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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.