Finding the Fourth Proportional to 531,461,446.20, 797,192,169.30 and 485,544,943.80
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Solution
The fourth proportional to 531,461,446.20, 797,192,169.30 and 485,544,943.80 is: 728,317,415.70
Step by Step Solution
- Step 1: Write the proportion equation
531,461,446.20 : 797,192,169.30 = 485,544,943.80 : x - Step 2: Convert to fraction form
531,461,446.20/797,192,169.30 = 485,544,943.80/x - Step 3: Cross multiply
531,461,446.20x = 797,192,169.30 × 485,544,943.80 - Step 4: Simplify right side
531,461,446.20x = 387,072,627,040,568,576 - Step 5: Solve for x
x = 387,072,627,040,568,576/531,461,446.20 - Step 6: Final answer
x = 728,317,415.70
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1.5x scale
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.