Finding the Fourth Proportional to 479,131,650.09, 661,203,669.06 and 259,115,076.09
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Solution
The fourth proportional to 479,131,650.09, 661,203,669.06 and 259,115,076.09 is: 357,579,882.25
Step by Step Solution
- Step 1: Write the proportion equation
479,131,650.09 : 661,203,669.06 = 259,115,076.09 : x - Step 2: Convert to fraction form
479,131,650.09/661,203,669.06 = 259,115,076.09/x - Step 3: Cross multiply
479,131,650.09x = 661,203,669.06 × 259,115,076.09 - Step 4: Simplify right side
479,131,650.09x = 171,327,839,019,469,056 - Step 5: Solve for x
x = 171,327,839,019,469,056/479,131,650.09 - Step 6: Final answer
x = 357,579,882.25
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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.