Finding the Fourth Proportional to 2,930,568.80, 4,395,853.20 and 2,080,263.20
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Solution
The fourth proportional to 2,930,568.80, 4,395,853.20 and 2,080,263.20 is: 3,120,394.80
Step by Step Solution
- Step 1: Write the proportion equation
2,930,568.80 : 4,395,853.20 = 2,080,263.20 : x - Step 2: Convert to fraction form
2,930,568.80/4,395,853.20 = 2,080,263.20/x - Step 3: Cross multiply
2,930,568.80x = 4,395,853.20 × 2,080,263.20 - Step 4: Simplify right side
2,930,568.80x = 9,144,531,644,562.24 - Step 5: Solve for x
x = 9,144,531,644,562.24/2,930,568.80 - Step 6: Final answer
x = 3,120,394.80
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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.