Finding the Fourth Proportional to 203,829,711.53, 281,288,237.83 and 115,721,911.31
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Solution
The fourth proportional to 203,829,711.53, 281,288,237.83 and 115,721,911.31 is: 159,698,074.76
Step by Step Solution
- Step 1: Write the proportion equation
203,829,711.53 : 281,288,237.83 = 115,721,911.31 : x - Step 2: Convert to fraction form
203,829,711.53/281,288,237.83 = 115,721,911.31/x - Step 3: Cross multiply
203,829,711.53x = 281,288,237.83 × 115,721,911.31 - Step 4: Simplify right side
203,829,711.53x = 32,551,212,509,013,700 - Step 5: Solve for x
x = 32,551,212,509,013,700/203,829,711.53 - Step 6: Final answer
x = 159,698,074.76
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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.