Finding the Fourth Proportional to 7,871,224,105.80, 11,811,371,121.90 and 2,967,417,232.20
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Solution
The fourth proportional to 7,871,224,105.80, 11,811,371,121.90 and 2,967,417,232.20 is: 4,452,835,509.69
Step by Step Solution
- Step 1: Write the proportion equation
7,871,224,105.80 : 11,811,371,121.90 = 2,967,417,232.20 : x - Step 2: Convert to fraction form
7,871,224,105.80/11,811,371,121.90 = 2,967,417,232.20/x - Step 3: Cross multiply
7,871,224,105.80x = 11,811,371,121.90 × 2,967,417,232.20 - Step 4: Simplify right side
7,871,224,105.80x = 35,049,266,203,035,504,640 - Step 5: Solve for x
x = 35,049,266,203,035,504,640/7,871,224,105.80 - Step 6: Final answer
x = 4,452,835,509.69
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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.