Finding the Fourth Proportional to 173,791,202.40, 260,836,102.80 and 76,896,021.60
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Solution
The fourth proportional to 173,791,202.40, 260,836,102.80 and 76,896,021.60 is: 115,410,091.64
Step by Step Solution
- Step 1: Write the proportion equation
173,791,202.40 : 260,836,102.80 = 76,896,021.60 : x - Step 2: Convert to fraction form
173,791,202.40/260,836,102.80 = 76,896,021.60/x - Step 3: Cross multiply
173,791,202.40x = 260,836,102.80 × 76,896,021.60 - Step 4: Simplify right side
173,791,202.40x = 20,057,258,594,968,620 - Step 5: Solve for x
x = 20,057,258,594,968,620/173,791,202.40 - Step 6: Final answer
x = 115,410,091.64
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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.