Finding the Fourth Proportional to 481,486,653.12, 721,192,271.49 and 325,180,953.03
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Solution
The fourth proportional to 481,486,653.12, 721,192,271.49 and 325,180,953.03 is: 487,070,594.05
Step by Step Solution
- Step 1: Write the proportion equation
481,486,653.12 : 721,192,271.49 = 325,180,953.03 : x - Step 2: Convert to fraction form
481,486,653.12/721,192,271.49 = 325,180,953.03/x - Step 3: Cross multiply
481,486,653.12x = 721,192,271.49 × 325,180,953.03 - Step 4: Simplify right side
481,486,653.12x = 234,517,990,160,988,672 - Step 5: Solve for x
x = 234,517,990,160,988,672/481,486,653.12 - Step 6: Final answer
x = 487,070,594.05
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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.