Finding the Fourth Proportional to 199,117,515.87, 274,781,190.37 and 115,502,557.23
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Solution
The fourth proportional to 199,117,515.87, 274,781,190.37 and 115,502,557.23 is: 159,392,959.62
Step by Step Solution
- Step 1: Write the proportion equation
199,117,515.87 : 274,781,190.37 = 115,502,557.23 : x - Step 2: Convert to fraction form
199,117,515.87/274,781,190.37 = 115,502,557.23/x - Step 3: Cross multiply
199,117,515.87x = 274,781,190.37 × 115,502,557.23 - Step 4: Simplify right side
199,117,515.87x = 31,737,930,166,438,452 - Step 5: Solve for x
x = 31,737,930,166,438,452/199,117,515.87 - Step 6: Final answer
x = 159,392,959.62
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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.