Finding the Fourth Proportional to 8,203,619.71, 11,321,449.28 and 4,532,457.57
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Solution
The fourth proportional to 8,203,619.71, 11,321,449.28 and 4,532,457.57 is: 6,255,042.32
Step by Step Solution
- Step 1: Write the proportion equation
8,203,619.71 : 11,321,449.28 = 4,532,457.57 : x - Step 2: Convert to fraction form
8,203,619.71/11,321,449.28 = 4,532,457.57/x - Step 3: Cross multiply
8,203,619.71x = 11,321,449.28 × 4,532,457.57 - Step 4: Simplify right side
8,203,619.71x = 51,313,988,444,386.05 - Step 5: Solve for x
x = 51,313,988,444,386.05/8,203,619.71 - Step 6: Final answer
x = 6,255,042.32
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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.