Finding the Fourth Proportional to 132,595,840.80, 198,893,761.20 and 121,116,715.20
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Solution
The fourth proportional to 132,595,840.80, 198,893,761.20 and 121,116,715.20 is: 181,675,072.80
Step by Step Solution
- Step 1: Write the proportion equation
132,595,840.80 : 198,893,761.20 = 121,116,715.20 : x - Step 2: Convert to fraction form
132,595,840.80/198,893,761.20 = 121,116,715.20/x - Step 3: Cross multiply
132,595,840.80x = 198,893,761.20 × 121,116,715.20 - Step 4: Simplify right side
132,595,840.80x = 24,089,359,030,317,208 - Step 5: Solve for x
x = 24,089,359,030,317,208/132,595,840.80 - Step 6: Final answer
x = 181,675,072.80
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1.5x scale
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.