Finding the Fourth Proportional to 29,759,751.78, 41,072,939.68 and 18,164,053.60
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Solution
The fourth proportional to 29,759,751.78, 41,072,939.68 and 18,164,053.60 is: 25,069,129.72
Step by Step Solution
- Step 1: Write the proportion equation
29,759,751.78 : 41,072,939.68 = 18,164,053.60 : x - Step 2: Convert to fraction form
29,759,751.78/41,072,939.68 = 18,164,053.60/x - Step 3: Cross multiply
29,759,751.78x = 41,072,939.68 × 18,164,053.60 - Step 4: Simplify right side
29,759,751.78x = 746,051,077,857,086.88 - Step 5: Solve for x
x = 746,051,077,857,086.88/29,759,751.78 - Step 6: Final answer
x = 25,069,129.72
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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.