Finding the Fourth Proportional to 6,321,728.84, 8,723,984.72 and 3,421,119.65
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Solution
The fourth proportional to 6,321,728.84, 8,723,984.72 and 3,421,119.65 is: 4,721,144.53
Step by Step Solution
- Step 1: Write the proportion equation
6,321,728.84 : 8,723,984.72 = 3,421,119.65 : x - Step 2: Convert to fraction form
6,321,728.84/8,723,984.72 = 3,421,119.65/x - Step 3: Cross multiply
6,321,728.84x = 8,723,984.72 × 3,421,119.65 - Step 4: Simplify right side
6,321,728.84x = 29,845,795,491,166.23 - Step 5: Solve for x
x = 29,845,795,491,166.23/6,321,728.84 - Step 6: Final answer
x = 4,721,144.53
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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.