Finding the Fourth Proportional to 5,378,494.80, 8,067,742.20 and 1,966,774.80
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Solution
The fourth proportional to 5,378,494.80, 8,067,742.20 and 1,966,774.80 is: 2,950,162.20
Step by Step Solution
- Step 1: Write the proportion equation
5,378,494.80 : 8,067,742.20 = 1,966,774.80 : x - Step 2: Convert to fraction form
5,378,494.80/8,067,742.20 = 1,966,774.80/x - Step 3: Cross multiply
5,378,494.80x = 8,067,742.20 × 1,966,774.80 - Step 4: Simplify right side
5,378,494.80x = 15,867,432,051,856.56 - Step 5: Solve for x
x = 15,867,432,051,856.56/5,378,494.80 - Step 6: Final answer
x = 2,950,162.20
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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.