Finding the Fourth Proportional to 265,721,197.80, 398,581,796.70 and 265,721,197.80
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Solution
The fourth proportional to 265,721,197.80, 398,581,796.70 and 265,721,197.80 is: 398,581,796.70
Step by Step Solution
- Step 1: Write the proportion equation
265,721,197.80 : 398,581,796.70 = 265,721,197.80 : x - Step 2: Convert to fraction form
265,721,197.80/398,581,796.70 = 265,721,197.80/x - Step 3: Cross multiply
265,721,197.80x = 398,581,796.70 × 265,721,197.80 - Step 4: Simplify right side
265,721,197.80x = 105,911,632,440,400,096 - Step 5: Solve for x
x = 105,911,632,440,400,096/265,721,197.80 - Step 6: Final answer
x = 398,581,796.70
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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.