Finding the Fourth Proportional to 1,180,192,163.19, 1,628,656,752.74 and 644,343,811.44
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Solution
The fourth proportional to 1,180,192,163.19, 1,628,656,752.74 and 644,343,811.44 is: 889,189,855.95
Step by Step Solution
- Step 1: Write the proportion equation
1,180,192,163.19 : 1,628,656,752.74 = 644,343,811.44 : x - Step 2: Convert to fraction form
1,180,192,163.19/1,628,656,752.74 = 644,343,811.44/x - Step 3: Cross multiply
1,180,192,163.19x = 1,628,656,752.74 × 644,343,811.44 - Step 4: Simplify right side
1,180,192,163.19x = 1,049,414,899,584,763,520 - Step 5: Solve for x
x = 1,049,414,899,584,763,520/1,180,192,163.19 - Step 6: Final answer
x = 889,189,855.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.