Finding the Fourth Proportional to 995,409,245.20, 1,493,113,867.80 and 850,290,422.80
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Solution
The fourth proportional to 995,409,245.20, 1,493,113,867.80 and 850,290,422.80 is: 1,275,435,634.20
Step by Step Solution
- Step 1: Write the proportion equation
995,409,245.20 : 1,493,113,867.80 = 850,290,422.80 : x - Step 2: Convert to fraction form
995,409,245.20/1,493,113,867.80 = 850,290,422.80/x - Step 3: Cross multiply
995,409,245.20x = 1,493,113,867.80 × 850,290,422.80 - Step 4: Simplify right side
995,409,245.20x = 1,269,580,421,940,205,312 - Step 5: Solve for x
x = 1,269,580,421,940,205,312/995,409,245.20 - Step 6: Final answer
x = 1,275,435,634.20
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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.