Finding the Fourth Proportional to 453,261,704.40, 679,892,556.60 and 315,512,197.20
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Solution
The fourth proportional to 453,261,704.40, 679,892,556.60 and 315,512,197.20 is: 473,268,295.80
Step by Step Solution
- Step 1: Write the proportion equation
453,261,704.40 : 679,892,556.60 = 315,512,197.20 : x - Step 2: Convert to fraction form
453,261,704.40/679,892,556.60 = 315,512,197.20/x - Step 3: Cross multiply
453,261,704.40x = 679,892,556.60 × 315,512,197.20 - Step 4: Simplify right side
453,261,704.40x = 214,514,394,392,791,360 - Step 5: Solve for x
x = 214,514,394,392,791,360/453,261,704.40 - Step 6: Final answer
x = 473,268,295.80
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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.