Finding the Fourth Proportional to 6,430,742.58, 8,874,195.12 and 3,639,805.94
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Solution
The fourth proportional to 6,430,742.58, 8,874,195.12 and 3,639,805.94 is: 5,022,802.21
Step by Step Solution
- Step 1: Write the proportion equation
6,430,742.58 : 8,874,195.12 = 3,639,805.94 : x - Step 2: Convert to fraction form
6,430,742.58/8,874,195.12 = 3,639,805.94/x - Step 3: Cross multiply
6,430,742.58x = 8,874,195.12 × 3,639,805.94 - Step 4: Simplify right side
6,430,742.58x = 32,300,348,066,124.04 - Step 5: Solve for x
x = 32,300,348,066,124.04/6,430,742.58 - Step 6: Final answer
x = 5,022,802.21
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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.