Finding the Fourth Proportional to 71,887,201.92, 99,190,578.24 and 40,946,693.76
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Solution
The fourth proportional to 71,887,201.92, 99,190,578.24 and 40,946,693.76 is: 56,498,599.51
Step by Step Solution
- Step 1: Write the proportion equation
71,887,201.92 : 99,190,578.24 = 40,946,693.76 : x - Step 2: Convert to fraction form
71,887,201.92/99,190,578.24 = 40,946,693.76/x - Step 3: Cross multiply
71,887,201.92x = 99,190,578.24 × 40,946,693.76 - Step 4: Simplify right side
71,887,201.92x = 4,061,526,231,070,599.50 - Step 5: Solve for x
x = 4,061,526,231,070,599.50/71,887,201.92 - Step 6: Final answer
x = 56,498,599.51
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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.