Finding the Fourth Proportional to 8,686,021.97, 11,988,147.26 and 4,819,788.70
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Solution
The fourth proportional to 8,686,021.97, 11,988,147.26 and 4,819,788.70 is: 6,652,105.74
Step by Step Solution
- Step 1: Write the proportion equation
8,686,021.97 : 11,988,147.26 = 4,819,788.70 : x - Step 2: Convert to fraction form
8,686,021.97/11,988,147.26 = 4,819,788.70/x - Step 3: Cross multiply
8,686,021.97x = 11,988,147.26 × 4,819,788.70 - Step 4: Simplify right side
8,686,021.97x = 57,780,336,637,743.23 - Step 5: Solve for x
x = 57,780,336,637,743.23/8,686,021.97 - Step 6: Final answer
x = 6,652,105.74
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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.