Finding the Fourth Proportional to 122,485,512.40, 183,728,268.60 and 121,635,206.80
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Solution
The fourth proportional to 122,485,512.40, 183,728,268.60 and 121,635,206.80 is: 182,452,810.20
Step by Step Solution
- Step 1: Write the proportion equation
122,485,512.40 : 183,728,268.60 = 121,635,206.80 : x - Step 2: Convert to fraction form
122,485,512.40/183,728,268.60 = 121,635,206.80/x - Step 3: Cross multiply
122,485,512.40x = 183,728,268.60 × 121,635,206.80 - Step 4: Simplify right side
122,485,512.40x = 22,347,825,946,166,944 - Step 5: Solve for x
x = 22,347,825,946,166,944/122,485,512.40 - Step 6: Final answer
x = 182,452,810.20
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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.