Finding the Fourth Proportional to 348,481,091.80, 522,721,637.70 and 331,474,979.80
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Solution
The fourth proportional to 348,481,091.80, 522,721,637.70 and 331,474,979.80 is: 497,212,469.70
Step by Step Solution
- Step 1: Write the proportion equation
348,481,091.80 : 522,721,637.70 = 331,474,979.80 : x - Step 2: Convert to fraction form
348,481,091.80/522,721,637.70 = 331,474,979.80/x - Step 3: Cross multiply
348,481,091.80x = 522,721,637.70 × 331,474,979.80 - Step 4: Simplify right side
348,481,091.80x = 173,269,144,297,630,432 - Step 5: Solve for x
x = 173,269,144,297,630,432/348,481,091.80 - Step 6: Final answer
x = 497,212,469.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.