Finding the Fourth Proportional to 129,027,827.20, 193,541,740.80 and 33,289,715.20
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Solution
The fourth proportional to 129,027,827.20, 193,541,740.80 and 33,289,715.20 is: 49,934,572.80
Step by Step Solution
- Step 1: Write the proportion equation
129,027,827.20 : 193,541,740.80 = 33,289,715.20 : x - Step 2: Convert to fraction form
129,027,827.20/193,541,740.80 = 33,289,715.20/x - Step 3: Cross multiply
129,027,827.20x = 193,541,740.80 × 33,289,715.20 - Step 4: Simplify right side
129,027,827.20x = 6,442,949,430,544,220 - Step 5: Solve for x
x = 6,442,949,430,544,220/129,027,827.20 - Step 6: Final answer
x = 49,934,572.80
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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.