Finding the Fourth Proportional to 275,347,317.76, 380,006,747.04 and 205,611,629.68
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Solution
The fourth proportional to 275,347,317.76, 380,006,747.04 and 205,611,629.68 is: 283,764,545.75
Step by Step Solution
- Step 1: Write the proportion equation
275,347,317.76 : 380,006,747.04 = 205,611,629.68 : x - Step 2: Convert to fraction form
275,347,317.76/380,006,747.04 = 205,611,629.68/x - Step 3: Cross multiply
275,347,317.76x = 380,006,747.04 × 205,611,629.68 - Step 4: Simplify right side
275,347,317.76x = 78,133,806,548,289,920 - Step 5: Solve for x
x = 78,133,806,548,289,920/275,347,317.76 - Step 6: Final answer
x = 283,764,545.75
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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.