Finding the Fourth Proportional to 5,198,575.20, 7,797,862.80 and 3,938,863.20
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Solution
The fourth proportional to 5,198,575.20, 7,797,862.80 and 3,938,863.20 is: 5,908,294.80
Step by Step Solution
- Step 1: Write the proportion equation
5,198,575.20 : 7,797,862.80 = 3,938,863.20 : x - Step 2: Convert to fraction form
5,198,575.20/7,797,862.80 = 3,938,863.20/x - Step 3: Cross multiply
5,198,575.20x = 7,797,862.80 × 3,938,863.20 - Step 4: Simplify right side
5,198,575.20x = 30,714,714,821,568.96 - Step 5: Solve for x
x = 30,714,714,821,568.96/5,198,575.20 - Step 6: Final answer
x = 5,908,294.80
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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.