Finding the Fourth Proportional to 426,319,017.75, 588,322,015.97 and 230,748,729.75
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Solution
The fourth proportional to 426,319,017.75, 588,322,015.97 and 230,748,729.75 is: 318,434,205.88
Step by Step Solution
- Step 1: Write the proportion equation
426,319,017.75 : 588,322,015.97 = 230,748,729.75 : x - Step 2: Convert to fraction form
426,319,017.75/588,322,015.97 = 230,748,729.75/x - Step 3: Cross multiply
426,319,017.75x = 588,322,015.97 × 230,748,729.75 - Step 4: Simplify right side
426,319,017.75x = 135,754,557,867,882,976 - Step 5: Solve for x
x = 135,754,557,867,882,976/426,319,017.75 - Step 6: Final answer
x = 318,434,205.88
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1.5x scale
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.