Finding the Fourth Proportional to 142,726,276.80, 214,089,415.20 and 74,701,828.80
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Solution
The fourth proportional to 142,726,276.80, 214,089,415.20 and 74,701,828.80 is: 112,052,743.20
Step by Step Solution
- Step 1: Write the proportion equation
142,726,276.80 : 214,089,415.20 = 74,701,828.80 : x - Step 2: Convert to fraction form
142,726,276.80/214,089,415.20 = 74,701,828.80/x - Step 3: Cross multiply
142,726,276.80x = 214,089,415.20 × 74,701,828.80 - Step 4: Simplify right side
142,726,276.80x = 15,992,870,842,162,516 - Step 5: Solve for x
x = 15,992,870,842,162,516/142,726,276.80 - Step 6: Final answer
x = 112,052,743.20
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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.