Finding the Fourth Proportional to 479,131,661.62, 661,203,684.96 and 259,115,087.62
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Solution
The fourth proportional to 479,131,661.62, 661,203,684.96 and 259,115,087.62 is: 357,579,898.15
Step by Step Solution
- Step 1: Write the proportion equation
479,131,661.62 : 661,203,684.96 = 259,115,087.62 : x - Step 2: Convert to fraction form
479,131,661.62/661,203,684.96 = 259,115,087.62/x - Step 3: Cross multiply
479,131,661.62x = 661,203,684.96 × 259,115,087.62 - Step 4: Simplify right side
479,131,661.62x = 171,327,850,763,077,280 - Step 5: Solve for x
x = 171,327,850,763,077,280/479,131,661.62 - Step 6: Final answer
x = 357,579,898.15
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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.