Finding the Fourth Proportional to 1,080,698,170.20, 1,491,364,750.28 and 585,660,878.70
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Solution
The fourth proportional to 1,080,698,170.20, 1,491,364,750.28 and 585,660,878.70 is: 808,212,703.78
Step by Step Solution
- Step 1: Write the proportion equation
1,080,698,170.20 : 1,491,364,750.28 = 585,660,878.70 : x - Step 2: Convert to fraction form
1,080,698,170.20/1,491,364,750.28 = 585,660,878.70/x - Step 3: Cross multiply
1,080,698,170.20x = 1,491,364,750.28 × 585,660,878.70 - Step 4: Simplify right side
1,080,698,170.20x = 873,433,990,111,190,912 - Step 5: Solve for x
x = 873,433,990,111,190,912/1,080,698,170.20 - Step 6: Final answer
x = 808,212,703.78
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Double scale
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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.