Finding the Fourth Proportional to 257,046,830.37, 385,582,645.89 and 84,519,824.13
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Solution
The fourth proportional to 257,046,830.37, 385,582,645.89 and 84,519,824.13 is: 126,783,813.56
Step by Step Solution
- Step 1: Write the proportion equation
257,046,830.37 : 385,582,645.89 = 84,519,824.13 : x - Step 2: Convert to fraction form
257,046,830.37/385,582,645.89 = 84,519,824.13/x - Step 3: Cross multiply
257,046,830.37x = 385,582,645.89 × 84,519,824.13 - Step 4: Simplify right side
257,046,830.37x = 32,589,377,418,202,864 - Step 5: Solve for x
x = 32,589,377,418,202,864/257,046,830.37 - Step 6: Final answer
x = 126,783,813.56
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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.