Finding the Fourth Proportional to 1,080,698,175.59, 1,491,364,757.39 and 585,660,884.09
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Solution
The fourth proportional to 1,080,698,175.59, 1,491,364,757.39 and 585,660,884.09 is: 808,212,711.04
Step by Step Solution
- Step 1: Write the proportion equation
1,080,698,175.59 : 1,491,364,757.39 = 585,660,884.09 : x - Step 2: Convert to fraction form
1,080,698,175.59/1,491,364,757.39 = 585,660,884.09/x - Step 3: Cross multiply
1,080,698,175.59x = 1,491,364,757.39 × 585,660,884.09 - Step 4: Simplify right side
1,080,698,175.59x = 873,434,002,303,310,720 - Step 5: Solve for x
x = 873,434,002,303,310,720/1,080,698,175.59 - Step 6: Final answer
x = 808,212,711.04
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Double scale
Find fourth proportional to 1,080,698,176.59, 1,491,364,758.77 and 585,660,885.09
Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.