Finding the Fourth Proportional to 492,802,103.09, 680,066,915.68 and 272,785,529.09
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Solution
The fourth proportional to 492,802,103.09, 680,066,915.68 and 272,785,529.09 is: 376,444,037.57
Step by Step Solution
- Step 1: Write the proportion equation
492,802,103.09 : 680,066,915.68 = 272,785,529.09 : x - Step 2: Convert to fraction form
492,802,103.09/680,066,915.68 = 272,785,529.09/x - Step 3: Cross multiply
492,802,103.09x = 680,066,915.68 × 272,785,529.09 - Step 4: Simplify right side
492,802,103.09x = 185,512,413,412,414,336 - Step 5: Solve for x
x = 185,512,413,412,414,336/492,802,103.09 - Step 6: Final answer
x = 376,444,037.57
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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.