Finding the Fourth Proportional to 1,180,986,135.60, 1,771,479,203.40 and 404,373,687.60
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Solution
The fourth proportional to 1,180,986,135.60, 1,771,479,203.40 and 404,373,687.60 is: 606,560,531.40
Step by Step Solution
- Step 1: Write the proportion equation
1,180,986,135.60 : 1,771,479,203.40 = 404,373,687.60 : x - Step 2: Convert to fraction form
1,180,986,135.60/1,771,479,203.40 = 404,373,687.60/x - Step 3: Cross multiply
1,180,986,135.60x = 1,771,479,203.40 × 404,373,687.60 - Step 4: Simplify right side
1,180,986,135.60x = 716,339,577,985,568,512 - Step 5: Solve for x
x = 716,339,577,985,568,512/1,180,986,135.60 - Step 6: Final answer
x = 606,560,531.40
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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.