Finding the Fourth Proportional to 76,801,887.74, 115,202,942.48 and 31,363,682.24
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Solution
The fourth proportional to 76,801,887.74, 115,202,942.48 and 31,363,682.24 is: 47,045,568.63
Step by Step Solution
- Step 1: Write the proportion equation
76,801,887.74 : 115,202,942.48 = 31,363,682.24 : x - Step 2: Convert to fraction form
76,801,887.74/115,202,942.48 = 31,363,682.24/x - Step 3: Cross multiply
76,801,887.74x = 115,202,942.48 × 31,363,682.24 - Step 4: Simplify right side
76,801,887.74x = 3,613,188,480,479,703 - Step 5: Solve for x
x = 3,613,188,480,479,703/76,801,887.74 - Step 6: Final answer
x = 47,045,568.63
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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.