Finding the Fourth Proportional to 165,504,818.20, 228,393,858.75 and 91,172,331.97
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Solution
The fourth proportional to 165,504,818.20, 228,393,858.75 and 91,172,331.97 is: 125,816,280.98
Step by Step Solution
- Step 1: Write the proportion equation
165,504,818.20 : 228,393,858.75 = 91,172,331.97 : x - Step 2: Convert to fraction form
165,504,818.20/228,393,858.75 = 91,172,331.97/x - Step 3: Cross multiply
165,504,818.20x = 228,393,858.75 × 91,172,331.97 - Step 4: Simplify right side
165,504,818.20x = 20,823,200,709,864,288 - Step 5: Solve for x
x = 20,823,200,709,864,288/165,504,818.20 - Step 6: Final answer
x = 125,816,280.98
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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.