Finding the Fourth Proportional to 21,342,090.28, 29,452,102.12 and 11,552,504.18
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Solution
The fourth proportional to 21,342,090.28, 29,452,102.12 and 11,552,504.18 is: 15,942,465.26
Step by Step Solution
- Step 1: Write the proportion equation
21,342,090.28 : 29,452,102.12 = 11,552,504.18 : x - Step 2: Convert to fraction form
21,342,090.28/29,452,102.12 = 11,552,504.18/x - Step 3: Cross multiply
21,342,090.28x = 29,452,102.12 × 11,552,504.18 - Step 4: Simplify right side
21,342,090.28x = 340,245,532,851,086.88 - Step 5: Solve for x
x = 340,245,532,851,086.88/21,342,090.28 - Step 6: Final answer
x = 15,942,465.26
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.