Finding the Fourth Proportional to 19,670,640.74, 29,498,867.67 and 8,311,969.70
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Solution
The fourth proportional to 19,670,640.74, 29,498,867.67 and 8,311,969.70 is: 12,464,957.17
Step by Step Solution
- Step 1: Write the proportion equation
19,670,640.74 : 29,498,867.67 = 8,311,969.70 : x - Step 2: Convert to fraction form
19,670,640.74/29,498,867.67 = 8,311,969.70/x - Step 3: Cross multiply
19,670,640.74x = 29,498,867.67 × 8,311,969.70 - Step 4: Simplify right side
19,670,640.74x = 245,193,694,257,349.62 - Step 5: Solve for x
x = 245,193,694,257,349.62/19,670,640.74 - Step 6: Final answer
x = 12,464,957.17
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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.