Finding the Fourth Proportional to 11,178,991.40, 16,772,031.87 and 3,990,366.14
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Solution
The fourth proportional to 11,178,991.40, 16,772,031.87 and 3,990,366.14 is: 5,986,814.52
Step by Step Solution
- Step 1: Write the proportion equation
11,178,991.40 : 16,772,031.87 = 3,990,366.14 : x - Step 2: Convert to fraction form
11,178,991.40/16,772,031.87 = 3,990,366.14/x - Step 3: Cross multiply
11,178,991.40x = 16,772,031.87 × 3,990,366.14 - Step 4: Simplify right side
11,178,991.40x = 66,926,548,073,048.88 - Step 5: Solve for x
x = 66,926,548,073,048.88/11,178,991.40 - Step 6: Final answer
x = 5,986,814.52
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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.