Finding the Fourth Proportional to 19,771,683.12, 27,282,589.20 and 11,398,958.64
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Solution
The fourth proportional to 19,771,683.12, 27,282,589.20 and 11,398,958.64 is: 15,729,217.59
Step by Step Solution
- Step 1: Write the proportion equation
19,771,683.12 : 27,282,589.20 = 11,398,958.64 : x - Step 2: Convert to fraction form
19,771,683.12/27,282,589.20 = 11,398,958.64/x - Step 3: Cross multiply
19,771,683.12x = 27,282,589.20 × 11,398,958.64 - Step 4: Simplify right side
19,771,683.12x = 310,993,105,882,910.69 - Step 5: Solve for x
x = 310,993,105,882,910.69/19,771,683.12 - Step 6: Final answer
x = 15,729,217.59
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.