Finding the Fourth Proportional to 681,252,023.93, 940,128,171.33 and 367,986,240.99
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Solution
The fourth proportional to 681,252,023.93, 940,128,171.33 and 367,986,240.99 is: 507,821,216.92
Step by Step Solution
- Step 1: Write the proportion equation
681,252,023.93 : 940,128,171.33 = 367,986,240.99 : x - Step 2: Convert to fraction form
681,252,023.93/940,128,171.33 = 367,986,240.99/x - Step 3: Cross multiply
681,252,023.93x = 940,128,171.33 × 367,986,240.99 - Step 4: Simplify right side
681,252,023.93x = 345,954,231,818,879,744 - Step 5: Solve for x
x = 345,954,231,818,879,744/681,252,023.93 - Step 6: Final answer
x = 507,821,216.92
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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.