Finding the Fourth Proportional to 472,190,916.09, 707,337,811.92 and 235,126,236.10
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Solution
The fourth proportional to 472,190,916.09, 707,337,811.92 and 235,126,236.10 is: 352,217,020.07
Step by Step Solution
- Step 1: Write the proportion equation
472,190,916.09 : 707,337,811.92 = 235,126,236.10 : x - Step 2: Convert to fraction form
472,190,916.09/707,337,811.92 = 235,126,236.10/x - Step 3: Cross multiply
472,190,916.09x = 707,337,811.92 × 235,126,236.10 - Step 4: Simplify right side
472,190,916.09x = 166,313,677,367,959,296 - Step 5: Solve for x
x = 166,313,677,367,959,296/472,190,916.09 - Step 6: Final answer
x = 352,217,020.07
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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.