Finding the Fourth Proportional to 120,787,431.60, 181,133,908.20 and 44,070,970.80
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Solution
The fourth proportional to 120,787,431.60, 181,133,908.20 and 44,070,970.80 is: 66,089,220.32
Step by Step Solution
- Step 1: Write the proportion equation
120,787,431.60 : 181,133,908.20 = 44,070,970.80 : x - Step 2: Convert to fraction form
120,787,431.60/181,133,908.20 = 44,070,970.80/x - Step 3: Cross multiply
120,787,431.60x = 181,133,908.20 × 44,070,970.80 - Step 4: Simplify right side
120,787,431.60x = 7,982,747,179,172,079 - Step 5: Solve for x
x = 7,982,747,179,172,079/120,787,431.60 - Step 6: Final answer
x = 66,089,220.32
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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.