Finding the Fourth Proportional to 368,997,532.06, 509,218,897.14 and 201,734,153.68
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Solution
The fourth proportional to 368,997,532.06, 509,218,897.14 and 201,734,153.68 is: 278,394,391.09
Step by Step Solution
- Step 1: Write the proportion equation
368,997,532.06 : 509,218,897.14 = 201,734,153.68 : x - Step 2: Convert to fraction form
368,997,532.06/509,218,897.14 = 201,734,153.68/x - Step 3: Cross multiply
368,997,532.06x = 509,218,897.14 × 201,734,153.68 - Step 4: Simplify right side
368,997,532.06x = 102,726,843,252,400,880 - Step 5: Solve for x
x = 102,726,843,252,400,880/368,997,532.06 - Step 6: Final answer
x = 278,394,391.09
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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.