Finding the Fourth Proportional to 142,088,252.40, 213,132,378.60 and 87,562,405.80
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Solution
The fourth proportional to 142,088,252.40, 213,132,378.60 and 87,562,405.80 is: 131,343,608.70
Step by Step Solution
- Step 1: Write the proportion equation
142,088,252.40 : 213,132,378.60 = 87,562,405.80 : x - Step 2: Convert to fraction form
142,088,252.40/213,132,378.60 = 87,562,405.80/x - Step 3: Cross multiply
142,088,252.40x = 213,132,378.60 × 87,562,405.80 - Step 4: Simplify right side
142,088,252.40x = 18,662,383,824,092,436 - Step 5: Solve for x
x = 18,662,383,824,092,436/142,088,252.40 - Step 6: Final answer
x = 131,343,608.70
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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.