Finding the Fourth Proportional to 19,903,200.83, 27,474,890.99 and 13,380,612.75
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Solution
The fourth proportional to 19,903,200.83, 27,474,890.99 and 13,380,612.75 is: 18,470,942.43
Step by Step Solution
- Step 1: Write the proportion equation
19,903,200.83 : 27,474,890.99 = 13,380,612.75 : x - Step 2: Convert to fraction form
19,903,200.83/27,474,890.99 = 13,380,612.75/x - Step 3: Cross multiply
19,903,200.83x = 27,474,890.99 × 13,380,612.75 - Step 4: Simplify right side
19,903,200.83x = 367,630,876,618,751.06 - Step 5: Solve for x
x = 367,630,876,618,751.06/19,903,200.83 - Step 6: Final answer
x = 18,470,942.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.