Finding the Fourth Proportional to 14,368,231.80, 21,552,347.70 and 13,659,643.80
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Solution
The fourth proportional to 14,368,231.80, 21,552,347.70 and 13,659,643.80 is: 20,489,465.70
Step by Step Solution
- Step 1: Write the proportion equation
14,368,231.80 : 21,552,347.70 = 13,659,643.80 : x - Step 2: Convert to fraction form
14,368,231.80/21,552,347.70 = 13,659,643.80/x - Step 3: Cross multiply
14,368,231.80x = 21,552,347.70 × 13,659,643.80 - Step 4: Simplify right side
14,368,231.80x = 294,397,392,635,749.25 - Step 5: Solve for x
x = 294,397,392,635,749.25/14,368,231.80 - Step 6: Final answer
x = 20,489,465.70
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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.