Finding the Fourth Proportional to 76,801,893.99, 115,202,951.85 and 31,363,688.49
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Solution
The fourth proportional to 76,801,893.99, 115,202,951.85 and 31,363,688.49 is: 47,045,578.01
Step by Step Solution
- Step 1: Write the proportion equation
76,801,893.99 : 115,202,951.85 = 31,363,688.49 : x - Step 2: Convert to fraction form
76,801,893.99/115,202,951.85 = 31,363,688.49/x - Step 3: Cross multiply
76,801,893.99x = 115,202,951.85 × 31,363,688.49 - Step 4: Simplify right side
76,801,893.99x = 3,613,189,494,951,869 - Step 5: Solve for x
x = 3,613,189,494,951,869/76,801,893.99 - Step 6: Final answer
x = 47,045,578.01
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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.