Finding the Fourth Proportional to 201,997,451.73, 278,756,603.10 and 112,689,396.09
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Solution
The fourth proportional to 201,997,451.73, 278,756,603.10 and 112,689,396.09 is: 155,511,433.39
Step by Step Solution
- Step 1: Write the proportion equation
201,997,451.73 : 278,756,603.10 = 112,689,396.09 : x - Step 2: Convert to fraction form
201,997,451.73/278,756,603.10 = 112,689,396.09/x - Step 3: Cross multiply
201,997,451.73x = 278,756,603.10 × 112,689,396.09 - Step 4: Simplify right side
201,997,451.73x = 31,412,913,259,438,824 - Step 5: Solve for x
x = 31,412,913,259,438,824/201,997,451.73 - Step 6: Final answer
x = 155,511,433.39
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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.