Finding the Fourth Proportional to 170,307,481.59, 235,024,418.58 and 91,991,034.99
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Solution
The fourth proportional to 170,307,481.59, 235,024,418.58 and 91,991,034.99 is: 126,947,679.05
Step by Step Solution
- Step 1: Write the proportion equation
170,307,481.59 : 235,024,418.58 = 91,991,034.99 : x - Step 2: Convert to fraction form
170,307,481.59/235,024,418.58 = 91,991,034.99/x - Step 3: Cross multiply
170,307,481.59x = 235,024,418.58 × 91,991,034.99 - Step 4: Simplify right side
170,307,481.59x = 21,620,139,513,097,188 - Step 5: Solve for x
x = 21,620,139,513,097,188/170,307,481.59 - Step 6: Final answer
x = 126,947,679.05
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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.