Finding the Fourth Proportional to 11,280,453.80, 15,565,383.72 and 6,450,624.68
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Solution
The fourth proportional to 11,280,453.80, 15,565,383.72 and 6,450,624.68 is: 8,900,922.80
Step by Step Solution
- Step 1: Write the proportion equation
11,280,453.80 : 15,565,383.72 = 6,450,624.68 : x - Step 2: Convert to fraction form
11,280,453.80/15,565,383.72 = 6,450,624.68/x - Step 3: Cross multiply
11,280,453.80x = 15,565,383.72 × 6,450,624.68 - Step 4: Simplify right side
11,280,453.80x = 100,406,448,377,902.20 - Step 5: Solve for x
x = 100,406,448,377,902.20/11,280,453.80 - Step 6: Final answer
x = 8,900,922.80
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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.