Finding the Fourth Proportional to 19,441,623.80, 29,162,435.70 and 18,321,879.80
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Solution
The fourth proportional to 19,441,623.80, 29,162,435.70 and 18,321,879.80 is: 27,482,819.70
Step by Step Solution
- Step 1: Write the proportion equation
19,441,623.80 : 29,162,435.70 = 18,321,879.80 : x - Step 2: Convert to fraction form
19,441,623.80/29,162,435.70 = 18,321,879.80/x - Step 3: Cross multiply
19,441,623.80x = 29,162,435.70 × 18,321,879.80 - Step 4: Simplify right side
19,441,623.80x = 534,310,641,570,628.88 - Step 5: Solve for x
x = 534,310,641,570,628.88/19,441,623.80 - Step 6: Final answer
x = 27,482,819.70
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1.5x scale
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.