Finding the Fourth Proportional to 797,912,760.68, 1,195,830,988.40 and 324,660,278.24
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Solution
The fourth proportional to 797,912,760.68, 1,195,830,988.40 and 324,660,278.24 is: 486,568,006.62
Step by Step Solution
- Step 1: Write the proportion equation
797,912,760.68 : 1,195,830,988.40 = 324,660,278.24 : x - Step 2: Convert to fraction form
797,912,760.68/1,195,830,988.40 = 324,660,278.24/x - Step 3: Cross multiply
797,912,760.68x = 1,195,830,988.40 × 324,660,278.24 - Step 4: Simplify right side
797,912,760.68x = 388,238,821,421,958,272 - Step 5: Solve for x
x = 388,238,821,421,958,272/797,912,760.68 - Step 6: Final answer
x = 486,568,006.62
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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.