Finding the Fourth Proportional to 629,860,445.40, 944,790,668.10 and 169,845,115.80
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Solution
The fourth proportional to 629,860,445.40, 944,790,668.10 and 169,845,115.80 is: 254,767,673.70
Step by Step Solution
- Step 1: Write the proportion equation
629,860,445.40 : 944,790,668.10 = 169,845,115.80 : x - Step 2: Convert to fraction form
629,860,445.40/944,790,668.10 = 169,845,115.80/x - Step 3: Cross multiply
629,860,445.40x = 944,790,668.10 × 169,845,115.80 - Step 4: Simplify right side
629,860,445.40x = 160,468,080,430,203,872 - Step 5: Solve for x
x = 160,468,080,430,203,872/629,860,445.40 - Step 6: Final answer
x = 254,767,673.70
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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.