Finding the Fourth Proportional to 17,639,486.40, 26,457,674.40 and 4,858,852.80
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Solution
The fourth proportional to 17,639,486.40, 26,457,674.40 and 4,858,852.80 is: 7,287,850.82
Step by Step Solution
- Step 1: Write the proportion equation
17,639,486.40 : 26,457,674.40 = 4,858,852.80 : x - Step 2: Convert to fraction form
17,639,486.40/26,457,674.40 = 4,858,852.80/x - Step 3: Cross multiply
17,639,486.40x = 26,457,674.40 × 4,858,852.80 - Step 4: Simplify right side
17,639,486.40x = 128,553,945,339,928.31 - Step 5: Solve for x
x = 128,553,945,339,928.31/17,639,486.40 - Step 6: Final answer
x = 7,287,850.82
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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.