Finding the Fourth Proportional to 5,177,537.75, 7,767,427.70 and 1,982,664.07
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Solution
The fourth proportional to 5,177,537.75, 7,767,427.70 and 1,982,664.07 is: 2,974,425.40
Step by Step Solution
- Step 1: Write the proportion equation
5,177,537.75 : 7,767,427.70 = 1,982,664.07 : x - Step 2: Convert to fraction form
5,177,537.75/7,767,427.70 = 1,982,664.07/x - Step 3: Cross multiply
5,177,537.75x = 7,767,427.70 × 1,982,664.07 - Step 4: Simplify right side
5,177,537.75x = 15,400,199,802,650.83 - Step 5: Solve for x
x = 15,400,199,802,650.83/5,177,537.75 - Step 6: Final answer
x = 2,974,425.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.