Finding the Fourth Proportional to 7,244,537.40, 10,879,247.70 and 5,129,465.40
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Solution
The fourth proportional to 7,244,537.40, 10,879,247.70 and 5,129,465.40 is: 7,703,007.32
Step by Step Solution
- Step 1: Write the proportion equation
7,244,537.40 : 10,879,247.70 = 5,129,465.40 : x - Step 2: Convert to fraction form
7,244,537.40/10,879,247.70 = 5,129,465.40/x - Step 3: Cross multiply
7,244,537.40x = 10,879,247.70 × 5,129,465.40 - Step 4: Simplify right side
7,244,537.40x = 55,804,724,655,179.58 - Step 5: Solve for x
x = 55,804,724,655,179.58/7,244,537.40 - Step 6: Final answer
x = 7,703,007.32
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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.