Finding the Fourth Proportional to 402,408,051.80, 603,612,077.70 and 115,193,715.80
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Solution
The fourth proportional to 402,408,051.80, 603,612,077.70 and 115,193,715.80 is: 172,790,573.70
Step by Step Solution
- Step 1: Write the proportion equation
402,408,051.80 : 603,612,077.70 = 115,193,715.80 : x - Step 2: Convert to fraction form
402,408,051.80/603,612,077.70 = 115,193,715.80/x - Step 3: Cross multiply
402,408,051.80x = 603,612,077.70 × 115,193,715.80 - Step 4: Simplify right side
402,408,051.80x = 69,532,318,132,021,320 - Step 5: Solve for x
x = 69,532,318,132,021,320/402,408,051.80 - Step 6: Final answer
x = 172,790,573.70
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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.