Finding the Fourth Proportional to 531,461,296.20, 797,191,944.30 and 485,544,793.80
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Solution
The fourth proportional to 531,461,296.20, 797,191,944.30 and 485,544,793.80 is: 728,317,190.70
Step by Step Solution
- Step 1: Write the proportion equation
531,461,296.20 : 797,191,944.30 = 485,544,793.80 : x - Step 2: Convert to fraction form
531,461,296.20/797,191,944.30 = 485,544,793.80/x - Step 3: Cross multiply
531,461,296.20x = 797,191,944.30 × 485,544,793.80 - Step 4: Simplify right side
531,461,296.20x = 387,072,398,214,164,544 - Step 5: Solve for x
x = 387,072,398,214,164,544/531,461,296.20 - Step 6: Final answer
x = 728,317,190.70
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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.