Finding the Fourth Proportional to 2,986,726.80, 4,489,421.40 and 2,930,739.60
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Solution
The fourth proportional to 2,986,726.80, 4,489,421.40 and 2,930,739.60 is: 4,405,265.68
Step by Step Solution
- Step 1: Write the proportion equation
2,986,726.80 : 4,489,421.40 = 2,930,739.60 : x - Step 2: Convert to fraction form
2,986,726.80/4,489,421.40 = 2,930,739.60/x - Step 3: Cross multiply
2,986,726.80x = 4,489,421.40 × 2,930,739.60 - Step 4: Simplify right side
2,986,726.80x = 13,157,325,078,067.44 - Step 5: Solve for x
x = 13,157,325,078,067.44/2,986,726.80 - Step 6: Final answer
x = 4,405,265.68
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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.