Finding the Fourth Proportional to 7,247,701.12, 10,871,553.90 and 2,130,131.92
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Solution
The fourth proportional to 7,247,701.12, 10,871,553.90 and 2,130,131.92 is: 3,195,198.53
Step by Step Solution
- Step 1: Write the proportion equation
7,247,701.12 : 10,871,553.90 = 2,130,131.92 : x - Step 2: Convert to fraction form
7,247,701.12/10,871,553.90 = 2,130,131.92/x - Step 3: Cross multiply
7,247,701.12x = 10,871,553.90 × 2,130,131.92 - Step 4: Simplify right side
7,247,701.12x = 23,157,843,982,390.49 - Step 5: Solve for x
x = 23,157,843,982,390.49/7,247,701.12 - Step 6: Final answer
x = 3,195,198.53
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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.