Finding the Fourth Proportional to 479,131,699.05, 661,203,737.51 and 259,115,125.05
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Solution
The fourth proportional to 479,131,699.05, 661,203,737.51 and 259,115,125.05 is: 357,579,950.29
Step by Step Solution
- Step 1: Write the proportion equation
479,131,699.05 : 661,203,737.51 = 259,115,125.05 : x - Step 2: Convert to fraction form
479,131,699.05/661,203,737.51 = 259,115,125.05/x - Step 3: Cross multiply
479,131,699.05x = 661,203,737.51 × 259,115,125.05 - Step 4: Simplify right side
479,131,699.05x = 171,327,889,127,135,456 - Step 5: Solve for x
x = 171,327,889,127,135,456/479,131,699.05 - Step 6: Final answer
x = 357,579,950.29
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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.