Finding the Fourth Proportional to 331,252,715.60, 457,128,763.08 and 192,104,189.36
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Solution
The fourth proportional to 331,252,715.60, 457,128,763.08 and 192,104,189.36 is: 265,103,790.34
Step by Step Solution
- Step 1: Write the proportion equation
331,252,715.60 : 457,128,763.08 = 192,104,189.36 : x - Step 2: Convert to fraction form
331,252,715.60/457,128,763.08 = 192,104,189.36/x - Step 3: Cross multiply
331,252,715.60x = 457,128,763.08 × 192,104,189.36 - Step 4: Simplify right side
331,252,715.60x = 87,816,350,464,622,896 - Step 5: Solve for x
x = 87,816,350,464,622,896/331,252,715.60 - Step 6: Final answer
x = 265,103,790.34
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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.