Finding the Fourth Proportional to 17,639,490.40, 26,457,680.40 and 4,858,856.80
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Solution
The fourth proportional to 17,639,490.40, 26,457,680.40 and 4,858,856.80 is: 7,287,856.81
Step by Step Solution
- Step 1: Write the proportion equation
17,639,490.40 : 26,457,680.40 = 4,858,856.80 : x - Step 2: Convert to fraction form
17,639,490.40/26,457,680.40 = 4,858,856.80/x - Step 3: Cross multiply
17,639,490.40x = 26,457,680.40 × 4,858,856.80 - Step 4: Simplify right side
17,639,490.40x = 128,554,080,323,766.70 - Step 5: Solve for x
x = 128,554,080,323,766.70/17,639,490.40 - Step 6: Final answer
x = 7,287,856.81
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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.