Finding the Fourth Proportional to 402,408,052.30, 603,612,078.45 and 115,193,716.30
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Solution
The fourth proportional to 402,408,052.30, 603,612,078.45 and 115,193,716.30 is: 172,790,574.45
Step by Step Solution
- Step 1: Write the proportion equation
402,408,052.30 : 603,612,078.45 = 115,193,716.30 : x - Step 2: Convert to fraction form
402,408,052.30/603,612,078.45 = 115,193,716.30/x - Step 3: Cross multiply
402,408,052.30x = 603,612,078.45 × 115,193,716.30 - Step 4: Simplify right side
402,408,052.30x = 69,532,318,520,222,648 - Step 5: Solve for x
x = 69,532,318,520,222,648/402,408,052.30 - Step 6: Final answer
x = 172,790,574.45
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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.