Finding the Fourth Proportional to 8,026,959.20, 12,040,438.80 and 3,236,943.20
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Solution
The fourth proportional to 8,026,959.20, 12,040,438.80 and 3,236,943.20 is: 4,855,414.80
Step by Step Solution
- Step 1: Write the proportion equation
8,026,959.20 : 12,040,438.80 = 3,236,943.20 : x - Step 2: Convert to fraction form
8,026,959.20/12,040,438.80 = 3,236,943.20/x - Step 3: Cross multiply
8,026,959.20x = 12,040,438.80 × 3,236,943.20 - Step 4: Simplify right side
8,026,959.20x = 38,974,216,498,676.16 - Step 5: Solve for x
x = 38,974,216,498,676.16/8,026,959.20 - Step 6: Final answer
x = 4,855,414.80
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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.