Finding the Fourth Proportional to 7,871,224,110.80, 11,811,371,129.40 and 2,967,417,237.20
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Solution
The fourth proportional to 7,871,224,110.80, 11,811,371,129.40 and 2,967,417,237.20 is: 4,452,835,517.19
Step by Step Solution
- Step 1: Write the proportion equation
7,871,224,110.80 : 11,811,371,129.40 = 2,967,417,237.20 : x - Step 2: Convert to fraction form
7,871,224,110.80/11,811,371,129.40 = 2,967,417,237.20/x - Step 3: Cross multiply
7,871,224,110.80x = 11,811,371,129.40 × 2,967,417,237.20 - Step 4: Simplify right side
7,871,224,110.80x = 35,049,266,284,347,990,016 - Step 5: Solve for x
x = 35,049,266,284,347,990,016/7,871,224,110.80 - Step 6: Final answer
x = 4,452,835,517.19
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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.