Finding the Fourth Proportional to 405,143,019.58, 558,926,163.34 and 271,224,079.97
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Solution
The fourth proportional to 405,143,019.58, 558,926,163.34 and 271,224,079.97 is: 374,174,617.60
Step by Step Solution
- Step 1: Write the proportion equation
405,143,019.58 : 558,926,163.34 = 271,224,079.97 : x - Step 2: Convert to fraction form
405,143,019.58/558,926,163.34 = 271,224,079.97/x - Step 3: Cross multiply
405,143,019.58x = 558,926,163.34 × 271,224,079.97 - Step 4: Simplify right side
405,143,019.58x = 151,594,234,423,053,472 - Step 5: Solve for x
x = 151,594,234,423,053,472/405,143,019.58 - Step 6: Final answer
x = 374,174,617.60
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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.