Finding the Fourth Proportional to 12,156,409.76, 18,235,891.68 and 3,959,690.73
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Solution
The fourth proportional to 12,156,409.76, 18,235,891.68 and 3,959,690.73 is: 5,939,952.07
Step by Step Solution
- Step 1: Write the proportion equation
12,156,409.76 : 18,235,891.68 = 3,959,690.73 : x - Step 2: Convert to fraction form
12,156,409.76/18,235,891.68 = 3,959,690.73/x - Step 3: Cross multiply
12,156,409.76x = 18,235,891.68 × 3,959,690.73 - Step 4: Simplify right side
12,156,409.76x = 72,208,491,238,580.12 - Step 5: Solve for x
x = 72,208,491,238,580.12/12,156,409.76 - Step 6: Final answer
x = 5,939,952.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.