Finding the Fourth Proportional to 185,674,902.70, 278,512,354.05 and 121,104,821.20
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Solution
The fourth proportional to 185,674,902.70, 278,512,354.05 and 121,104,821.20 is: 181,657,231.80
Step by Step Solution
- Step 1: Write the proportion equation
185,674,902.70 : 278,512,354.05 = 121,104,821.20 : x - Step 2: Convert to fraction form
185,674,902.70/278,512,354.05 = 121,104,821.20/x - Step 3: Cross multiply
185,674,902.70x = 278,512,354.05 × 121,104,821.20 - Step 4: Simplify right side
185,674,902.70x = 33,729,188,839,216,348 - Step 5: Solve for x
x = 33,729,188,839,216,348/185,674,902.70 - Step 6: Final answer
x = 181,657,231.80
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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.