Finding the Fourth Proportional to 168,968,961.97, 253,560,059.21 and 71,924,511.13
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Solution
The fourth proportional to 168,968,961.97, 253,560,059.21 and 71,924,511.13 is: 107,932,149.72
Step by Step Solution
- Step 1: Write the proportion equation
168,968,961.97 : 253,560,059.21 = 71,924,511.13 : x - Step 2: Convert to fraction form
168,968,961.97/253,560,059.21 = 71,924,511.13/x - Step 3: Cross multiply
168,968,961.97x = 253,560,059.21 × 71,924,511.13 - Step 4: Simplify right side
168,968,961.97x = 18,237,183,300,773,104 - Step 5: Solve for x
x = 18,237,183,300,773,104/168,968,961.97 - Step 6: Final answer
x = 107,932,149.72
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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.