Finding the Fourth Proportional to 681,252,386.97, 940,128,672.60 and 367,986,603.99
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Solution
The fourth proportional to 681,252,386.97, 940,128,672.60 and 367,986,603.99 is: 507,821,718.00
Step by Step Solution
- Step 1: Write the proportion equation
681,252,386.97 : 940,128,672.60 = 367,986,603.99 : x - Step 2: Convert to fraction form
681,252,386.97/940,128,672.60 = 367,986,603.99/x - Step 3: Cross multiply
681,252,386.97x = 940,128,672.60 × 367,986,603.99 - Step 4: Simplify right side
681,252,386.97x = 345,954,757,543,700,608 - Step 5: Solve for x
x = 345,954,757,543,700,608/681,252,386.97 - Step 6: Final answer
x = 507,821,718.00
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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.