Finding the Fourth Proportional to 521,568,734.16, 719,465,136.84 and 325,658,323.92
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Solution
The fourth proportional to 521,568,734.16, 719,465,136.84 and 325,658,323.92 is: 449,221,349.43
Step by Step Solution
- Step 1: Write the proportion equation
521,568,734.16 : 719,465,136.84 = 325,658,323.92 : x - Step 2: Convert to fraction form
521,568,734.16/719,465,136.84 = 325,658,323.92/x - Step 3: Cross multiply
521,568,734.16x = 719,465,136.84 × 325,658,323.92 - Step 4: Simplify right side
521,568,734.16x = 234,299,810,582,187,872 - Step 5: Solve for x
x = 234,299,810,582,187,872/521,568,734.16 - Step 6: Final answer
x = 449,221,349.43
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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.