Finding the Fourth Proportional to 91,677,203.75, 126,516,934.64 and 50,425,178.69
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Solution
The fourth proportional to 91,677,203.75, 126,516,934.64 and 50,425,178.69 is: 69,588,063.07
Step by Step Solution
- Step 1: Write the proportion equation
91,677,203.75 : 126,516,934.64 = 50,425,178.69 : x - Step 2: Convert to fraction form
91,677,203.75/126,516,934.64 = 50,425,178.69/x - Step 3: Cross multiply
91,677,203.75x = 126,516,934.64 × 50,425,178.69 - Step 4: Simplify right side
91,677,203.75x = 6,379,639,036,975,406 - Step 5: Solve for x
x = 6,379,639,036,975,406/91,677,203.75 - Step 6: Final answer
x = 69,588,063.07
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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.