Finding the Fourth Proportional to 262,440,403.80, 393,660,605.70 and 89,859,859.80
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Solution
The fourth proportional to 262,440,403.80, 393,660,605.70 and 89,859,859.80 is: 134,789,789.70
Step by Step Solution
- Step 1: Write the proportion equation
262,440,403.80 : 393,660,605.70 = 89,859,859.80 : x - Step 2: Convert to fraction form
262,440,403.80/393,660,605.70 = 89,859,859.80/x - Step 3: Cross multiply
262,440,403.80x = 393,660,605.70 × 89,859,859.80 - Step 4: Simplify right side
262,440,403.80x = 35,374,286,836,985,080 - Step 5: Solve for x
x = 35,374,286,836,985,080/262,440,403.80 - Step 6: Final answer
x = 134,789,789.70
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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.