Finding the Fourth Proportional to 480,740,716.80, 721,866,902.40 and 276,667,372.80
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Solution
The fourth proportional to 480,740,716.80, 721,866,902.40 and 276,667,372.80 is: 415,436,039.47
Step by Step Solution
- Step 1: Write the proportion equation
480,740,716.80 : 721,866,902.40 = 276,667,372.80 : x - Step 2: Convert to fraction form
480,740,716.80/721,866,902.40 = 276,667,372.80/x - Step 3: Cross multiply
480,740,716.80x = 721,866,902.40 × 276,667,372.80 - Step 4: Simplify right side
480,740,716.80x = 199,717,019,398,282,016 - Step 5: Solve for x
x = 199,717,019,398,282,016/480,740,716.80 - Step 6: Final answer
x = 415,436,039.47
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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.