Finding the Fourth Proportional to 76,993,338.24, 115,452,215.84 and 38,086,837.92
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Solution
The fourth proportional to 76,993,338.24, 115,452,215.84 and 38,086,837.92 is: 57,111,562.28
Step by Step Solution
- Step 1: Write the proportion equation
76,993,338.24 : 115,452,215.84 = 38,086,837.92 : x - Step 2: Convert to fraction form
76,993,338.24/115,452,215.84 = 38,086,837.92/x - Step 3: Cross multiply
76,993,338.24x = 115,452,215.84 × 38,086,837.92 - Step 4: Simplify right side
76,993,338.24x = 4,397,209,832,202,937 - Step 5: Solve for x
x = 4,397,209,832,202,937/76,993,338.24 - Step 6: Final answer
x = 57,111,562.28
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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.