Finding the Fourth Proportional to 525,786,982.71, 721,786,486.57 and 451,318,259.08
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Solution
The fourth proportional to 525,786,982.71, 721,786,486.57 and 451,318,259.08 is: 619,557,789.10
Step by Step Solution
- Step 1: Write the proportion equation
525,786,982.71 : 721,786,486.57 = 451,318,259.08 : x - Step 2: Convert to fraction form
525,786,982.71/721,786,486.57 = 451,318,259.08/x - Step 3: Cross multiply
525,786,982.71x = 721,786,486.57 × 451,318,259.08 - Step 4: Simplify right side
525,786,982.71x = 325,755,420,546,242,240 - Step 5: Solve for x
x = 325,755,420,546,242,240/525,786,982.71 - Step 6: Final answer
x = 619,557,789.10
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.