Finding the Fourth Proportional to 221,273,709.96, 331,746,936.63 and 133,815,783.53
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Solution
The fourth proportional to 221,273,709.96, 331,746,936.63 and 133,815,783.53 is: 200,624,720.70
Step by Step Solution
- Step 1: Write the proportion equation
221,273,709.96 : 331,746,936.63 = 133,815,783.53 : x - Step 2: Convert to fraction form
221,273,709.96/331,746,936.63 = 133,815,783.53/x - Step 3: Cross multiply
221,273,709.96x = 331,746,936.63 × 133,815,783.53 - Step 4: Simplify right side
221,273,709.96x = 44,392,976,259,148,272 - Step 5: Solve for x
x = 44,392,976,259,148,272/221,273,709.96 - Step 6: Final answer
x = 200,624,720.70
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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.