Finding the Fourth Proportional to 87,948,101.57, 121,368,523.16 and 48,789,879.26
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Solution
The fourth proportional to 87,948,101.57, 121,368,523.16 and 48,789,879.26 is: 67,330,112.70
Step by Step Solution
- Step 1: Write the proportion equation
87,948,101.57 : 121,368,523.16 = 48,789,879.26 : x - Step 2: Convert to fraction form
87,948,101.57/121,368,523.16 = 48,789,879.26/x - Step 3: Cross multiply
87,948,101.57x = 121,368,523.16 × 48,789,879.26 - Step 4: Simplify right side
87,948,101.57x = 5,921,555,590,456,046 - Step 5: Solve for x
x = 5,921,555,590,456,046/87,948,101.57 - Step 6: Final answer
x = 67,330,112.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.