Finding the Fourth Proportional to 7,815,729.11, 11,724,723.89 and 2,956,718.12
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Solution
The fourth proportional to 7,815,729.11, 11,724,723.89 and 2,956,718.12 is: 4,435,504.74
Step by Step Solution
- Step 1: Write the proportion equation
7,815,729.11 : 11,724,723.89 = 2,956,718.12 : x - Step 2: Convert to fraction form
7,815,729.11/11,724,723.89 = 2,956,718.12/x - Step 3: Cross multiply
7,815,729.11x = 11,724,723.89 × 2,956,718.12 - Step 4: Simplify right side
7,815,729.11x = 34,666,703,526,328.07 - Step 5: Solve for x
x = 34,666,703,526,328.07/7,815,729.11 - Step 6: Final answer
x = 4,435,504.74
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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.