Finding the Fourth Proportional to 14,319,243.20, 21,490,615.20 and 14,207,268.80
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Solution
The fourth proportional to 14,319,243.20, 21,490,615.20 and 14,207,268.80 is: 21,322,561.71
Step by Step Solution
- Step 1: Write the proportion equation
14,319,243.20 : 21,490,615.20 = 14,207,268.80 : x - Step 2: Convert to fraction form
14,319,243.20/21,490,615.20 = 14,207,268.80/x - Step 3: Cross multiply
14,319,243.20x = 21,490,615.20 × 14,207,268.80 - Step 4: Simplify right side
14,319,243.20x = 305,322,946,823,765.75 - Step 5: Solve for x
x = 305,322,946,823,765.75/14,319,243.20 - Step 6: Final answer
x = 21,322,561.71
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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.