Finding the Fourth Proportional to 436,589,745.80, 655,203,483.30 and 307,449,582.80
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Solution
The fourth proportional to 436,589,745.80, 655,203,483.30 and 307,449,582.80 is: 461,398,920.90
Step by Step Solution
- Step 1: Write the proportion equation
436,589,745.80 : 655,203,483.30 = 307,449,582.80 : x - Step 2: Convert to fraction form
436,589,745.80/655,203,483.30 = 307,449,582.80/x - Step 3: Cross multiply
436,589,745.80x = 655,203,483.30 × 307,449,582.80 - Step 4: Simplify right side
436,589,745.80x = 201,442,037,589,691,776 - Step 5: Solve for x
x = 201,442,037,589,691,776/436,589,745.80 - Step 6: Final answer
x = 461,398,920.90
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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.