Finding the Fourth Proportional to 260,212,776.92, 389,723,426.58 and 130,857,150.68
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Solution
The fourth proportional to 260,212,776.92, 389,723,426.58 and 130,857,150.68 is: 195,986,137.80
Step by Step Solution
- Step 1: Write the proportion equation
260,212,776.92 : 389,723,426.58 = 130,857,150.68 : x - Step 2: Convert to fraction form
260,212,776.92/389,723,426.58 = 130,857,150.68/x - Step 3: Cross multiply
260,212,776.92x = 389,723,426.58 × 130,857,150.68 - Step 4: Simplify right side
260,212,776.92x = 50,998,097,155,504,976 - Step 5: Solve for x
x = 50,998,097,155,504,976/260,212,776.92 - Step 6: Final answer
x = 195,986,137.80
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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.