Finding the Fourth Proportional to 203,940,471.15, 281,437,890.69 and 111,120,978.99
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Solution
The fourth proportional to 203,940,471.15, 281,437,890.69 and 111,120,978.99 is: 153,346,973.08
Step by Step Solution
- Step 1: Write the proportion equation
203,940,471.15 : 281,437,890.69 = 111,120,978.99 : x - Step 2: Convert to fraction form
203,940,471.15/281,437,890.69 = 111,120,978.99/x - Step 3: Cross multiply
203,940,471.15x = 281,437,890.69 × 111,120,978.99 - Step 4: Simplify right side
203,940,471.15x = 31,273,653,938,353,404 - Step 5: Solve for x
x = 31,273,653,938,353,404/203,940,471.15 - Step 6: Final answer
x = 153,346,973.08
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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.