Finding the Fourth Proportional to 352,512,108.80, 528,768,163.20 and 256,960,620.80
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Solution
The fourth proportional to 352,512,108.80, 528,768,163.20 and 256,960,620.80 is: 385,440,931.20
Step by Step Solution
- Step 1: Write the proportion equation
352,512,108.80 : 528,768,163.20 = 256,960,620.80 : x - Step 2: Convert to fraction form
352,512,108.80/528,768,163.20 = 256,960,620.80/x - Step 3: Cross multiply
352,512,108.80x = 528,768,163.20 × 256,960,620.80 - Step 4: Simplify right side
352,512,108.80x = 135,872,595,475,147,712 - Step 5: Solve for x
x = 135,872,595,475,147,712/352,512,108.80 - Step 6: Final answer
x = 385,440,931.20
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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.