Finding the Fourth Proportional to 76,801,891.08, 115,202,947.50 and 31,363,685.58
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Solution
The fourth proportional to 76,801,891.08, 115,202,947.50 and 31,363,685.58 is: 47,045,573.65
Step by Step Solution
- Step 1: Write the proportion equation
76,801,891.08 : 115,202,947.50 = 31,363,685.58 : x - Step 2: Convert to fraction form
76,801,891.08/115,202,947.50 = 31,363,685.58/x - Step 3: Cross multiply
76,801,891.08x = 115,202,947.50 × 31,363,685.58 - Step 4: Simplify right side
76,801,891.08x = 3,613,189,023,279,247 - Step 5: Solve for x
x = 3,613,189,023,279,247/76,801,891.08 - Step 6: Final answer
x = 47,045,573.65
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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.