Finding the Fourth Proportional to 3,512,334,197.63, 5,268,810,977.60 and 991,284,886.32
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Solution
The fourth proportional to 3,512,334,197.63, 5,268,810,977.60 and 991,284,886.32 is: 1,487,014,730.69
Step by Step Solution
- Step 1: Write the proportion equation
3,512,334,197.63 : 5,268,810,977.60 = 991,284,886.32 : x - Step 2: Convert to fraction form
3,512,334,197.63/5,268,810,977.60 = 991,284,886.32/x - Step 3: Cross multiply
3,512,334,197.63x = 5,268,810,977.60 × 991,284,886.32 - Step 4: Simplify right side
3,512,334,197.63x = 5,222,892,690,971,785,216 - Step 5: Solve for x
x = 5,222,892,690,971,785,216/3,512,334,197.63 - Step 6: Final answer
x = 1,487,014,730.69
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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.