Finding the Fourth Proportional to 275,347,315.76, 380,006,744.28 and 205,611,627.68
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Solution
The fourth proportional to 275,347,315.76, 380,006,744.28 and 205,611,627.68 is: 283,764,542.99
Step by Step Solution
- Step 1: Write the proportion equation
275,347,315.76 : 380,006,744.28 = 205,611,627.68 : x - Step 2: Convert to fraction form
275,347,315.76/380,006,744.28 = 205,611,627.68/x - Step 3: Cross multiply
275,347,315.76x = 380,006,744.28 × 205,611,627.68 - Step 4: Simplify right side
275,347,315.76x = 78,133,805,220,788,320 - Step 5: Solve for x
x = 78,133,805,220,788,320/275,347,315.76 - Step 6: Final answer
x = 283,764,542.99
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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.