Finding the Fourth Proportional to 5,130,638.94, 7,680,615.36 and 3,102,745.62
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Solution
The fourth proportional to 5,130,638.94, 7,680,615.36 and 3,102,745.62 is: 4,644,839.75
Step by Step Solution
- Step 1: Write the proportion equation
5,130,638.94 : 7,680,615.36 = 3,102,745.62 : x - Step 2: Convert to fraction form
5,130,638.94/7,680,615.36 = 3,102,745.62/x - Step 3: Cross multiply
5,130,638.94x = 7,680,615.36 × 3,102,745.62 - Step 4: Simplify right side
5,130,638.94x = 23,830,995,667,144.73 - Step 5: Solve for x
x = 23,830,995,667,144.73/5,130,638.94 - Step 6: Final answer
x = 4,644,839.75
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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.