Finding the Fourth Proportional to 1,324,719,104.40, 1,987,078,656.60 and 452,305,558.80
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Solution
The fourth proportional to 1,324,719,104.40, 1,987,078,656.60 and 452,305,558.80 is: 678,458,338.20
Step by Step Solution
- Step 1: Write the proportion equation
1,324,719,104.40 : 1,987,078,656.60 = 452,305,558.80 : x - Step 2: Convert to fraction form
1,324,719,104.40/1,987,078,656.60 = 452,305,558.80/x - Step 3: Cross multiply
1,324,719,104.40x = 1,987,078,656.60 × 452,305,558.80 - Step 4: Simplify right side
1,324,719,104.40x = 898,766,722,153,016,320 - Step 5: Solve for x
x = 898,766,722,153,016,320/1,324,719,104.40 - Step 6: Final answer
x = 678,458,338.20
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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.