Finding the Fourth Proportional to 404,291,877.91, 557,922,791.11 and 218,652,893.39
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Solution
The fourth proportional to 404,291,877.91, 557,922,791.11 and 218,652,893.39 is: 301,740,992.66
Step by Step Solution
- Step 1: Write the proportion equation
404,291,877.91 : 557,922,791.11 = 218,652,893.39 : x - Step 2: Convert to fraction form
404,291,877.91/557,922,791.11 = 218,652,893.39/x - Step 3: Cross multiply
404,291,877.91x = 557,922,791.11 × 218,652,893.39 - Step 4: Simplify right side
404,291,877.91x = 121,991,432,564,426,064 - Step 5: Solve for x
x = 121,991,432,564,426,064/404,291,877.91 - Step 6: Final answer
x = 301,740,992.66
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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.