Finding the Fourth Proportional to 261,557,207.04, 360,893,721.60 and 151,542,220.80
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Solution
The fourth proportional to 261,557,207.04, 360,893,721.60 and 151,542,220.80 is: 209,096,268.70
Step by Step Solution
- Step 1: Write the proportion equation
261,557,207.04 : 360,893,721.60 = 151,542,220.80 : x - Step 2: Convert to fraction form
261,557,207.04/360,893,721.60 = 151,542,220.80/x - Step 3: Cross multiply
261,557,207.04x = 360,893,721.60 × 151,542,220.80 - Step 4: Simplify right side
261,557,207.04x = 54,690,636,044,040,936 - Step 5: Solve for x
x = 54,690,636,044,040,936/261,557,207.04 - Step 6: Final answer
x = 209,096,268.70
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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.