Finding the Fourth Proportional to 11,361,687.65, 15,679,515.83 and 6,719,452.10
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Solution
The fourth proportional to 11,361,687.65, 15,679,515.83 and 6,719,452.10 is: 9,273,072.70
Step by Step Solution
- Step 1: Write the proportion equation
11,361,687.65 : 15,679,515.83 = 6,719,452.10 : x - Step 2: Convert to fraction form
11,361,687.65/15,679,515.83 = 6,719,452.10/x - Step 3: Cross multiply
11,361,687.65x = 15,679,515.83 × 6,719,452.10 - Step 4: Simplify right side
11,361,687.65x = 105,357,755,570,876.73 - Step 5: Solve for x
x = 105,357,755,570,876.73/11,361,687.65 - Step 6: Final answer
x = 9,273,072.70
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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.