Finding the Fourth Proportional to 8,879,515.36, 12,253,731.24 and 4,805,134.40
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Solution
The fourth proportional to 8,879,515.36, 12,253,731.24 and 4,805,134.40 is: 6,631,085.50
Step by Step Solution
- Step 1: Write the proportion equation
8,879,515.36 : 12,253,731.24 = 4,805,134.40 : x - Step 2: Convert to fraction form
8,879,515.36/12,253,731.24 = 4,805,134.40/x - Step 3: Cross multiply
8,879,515.36x = 12,253,731.24 × 4,805,134.40 - Step 4: Simplify right side
8,879,515.36x = 58,880,825,509,678.66 - Step 5: Solve for x
x = 58,880,825,509,678.66/8,879,515.36 - Step 6: Final answer
x = 6,631,085.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.