Finding the Fourth Proportional to 142,858,176.76, 197,186,239.98 and 93,306,125.68
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Solution
The fourth proportional to 142,858,176.76, 197,186,239.98 and 93,306,125.68 is: 128,789,856.54
Step by Step Solution
- Step 1: Write the proportion equation
142,858,176.76 : 197,186,239.98 = 93,306,125.68 : x - Step 2: Convert to fraction form
142,858,176.76/197,186,239.98 = 93,306,125.68/x - Step 3: Cross multiply
142,858,176.76x = 197,186,239.98 × 93,306,125.68 - Step 4: Simplify right side
142,858,176.76x = 18,398,684,089,940,520 - Step 5: Solve for x
x = 18,398,684,089,940,520/142,858,176.76 - Step 6: Final answer
x = 128,789,856.54
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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.