Finding the Fourth Proportional to 508,418,615.36, 701,597,027.76 and 288,397,317.44
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Solution
The fourth proportional to 508,418,615.36, 701,597,027.76 and 288,397,317.44 is: 397,976,577.99
Step by Step Solution
- Step 1: Write the proportion equation
508,418,615.36 : 701,597,027.76 = 288,397,317.44 : x - Step 2: Convert to fraction form
508,418,615.36/701,597,027.76 = 288,397,317.44/x - Step 3: Cross multiply
508,418,615.36x = 701,597,027.76 × 288,397,317.44 - Step 4: Simplify right side
508,418,615.36x = 202,338,700,729,861,216 - Step 5: Solve for x
x = 202,338,700,729,861,216/508,418,615.36 - Step 6: Final answer
x = 397,976,577.99
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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.