Finding the Fourth Proportional to 20,802,067.80, 31,203,101.70 and 15,763,219.80
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Solution
The fourth proportional to 20,802,067.80, 31,203,101.70 and 15,763,219.80 is: 23,644,829.70
Step by Step Solution
- Step 1: Write the proportion equation
20,802,067.80 : 31,203,101.70 = 15,763,219.80 : x - Step 2: Convert to fraction form
20,802,067.80/31,203,101.70 = 15,763,219.80/x - Step 3: Cross multiply
20,802,067.80x = 31,203,101.70 × 15,763,219.80 - Step 4: Simplify right side
20,802,067.80x = 491,861,350,538,853.69 - Step 5: Solve for x
x = 491,861,350,538,853.69/20,802,067.80 - Step 6: Final answer
x = 23,644,829.70
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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.