Finding the Fourth Proportional to 7,986,813.24, 11,980,219.79 and 1,921,544.90
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Solution
The fourth proportional to 7,986,813.24, 11,980,219.79 and 1,921,544.90 is: 2,882,317.32
Step by Step Solution
- Step 1: Write the proportion equation
7,986,813.24 : 11,980,219.79 = 1,921,544.90 : x - Step 2: Convert to fraction form
7,986,813.24/11,980,219.79 = 1,921,544.90/x - Step 3: Cross multiply
7,986,813.24x = 11,980,219.79 × 1,921,544.90 - Step 4: Simplify right side
7,986,813.24x = 23,020,530,168,844.75 - Step 5: Solve for x
x = 23,020,530,168,844.75/7,986,813.24 - Step 6: Final answer
x = 2,882,317.32
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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.