Finding the Fourth Proportional to 515,833,660.20, 773,750,490.30 and 486,272,418.60
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Solution
The fourth proportional to 515,833,660.20, 773,750,490.30 and 486,272,418.60 is: 729,408,627.90
Step by Step Solution
- Step 1: Write the proportion equation
515,833,660.20 : 773,750,490.30 = 486,272,418.60 : x - Step 2: Convert to fraction form
515,833,660.20/773,750,490.30 = 486,272,418.60/x - Step 3: Cross multiply
515,833,660.20x = 773,750,490.30 × 486,272,418.60 - Step 4: Simplify right side
515,833,660.20x = 376,253,522,311,116,864 - Step 5: Solve for x
x = 376,253,522,311,116,864/515,833,660.20 - Step 6: Final answer
x = 729,408,627.90
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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.