Finding the Fourth Proportional to 1,180,192,163.69, 1,628,656,753.42 and 644,343,811.94
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Solution
The fourth proportional to 1,180,192,163.69, 1,628,656,753.42 and 644,343,811.94 is: 889,189,856.64
Step by Step Solution
- Step 1: Write the proportion equation
1,180,192,163.69 : 1,628,656,753.42 = 644,343,811.94 : x - Step 2: Convert to fraction form
1,180,192,163.69/1,628,656,753.42 = 644,343,811.94/x - Step 3: Cross multiply
1,180,192,163.69x = 1,628,656,753.42 × 644,343,811.94 - Step 4: Simplify right side
1,180,192,163.69x = 1,049,414,900,840,467,584 - Step 5: Solve for x
x = 1,049,414,900,840,467,584/1,180,192,163.69 - Step 6: Final answer
x = 889,189,856.64
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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.