Finding the Fourth Proportional to 71,053,169.63, 98,053,669.33 and 38,458,121.63
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Solution
The fourth proportional to 71,053,169.63, 98,053,669.33 and 38,458,121.63 is: 53,072,367.65
Step by Step Solution
- Step 1: Write the proportion equation
71,053,169.63 : 98,053,669.33 = 38,458,121.63 : x - Step 2: Convert to fraction form
71,053,169.63/98,053,669.33 = 38,458,121.63/x - Step 3: Cross multiply
71,053,169.63x = 98,053,669.33 × 38,458,121.63 - Step 4: Simplify right side
71,053,169.63x = 3,770,959,940,774,527 - Step 5: Solve for x
x = 3,770,959,940,774,527/71,053,169.63 - Step 6: Final answer
x = 53,072,367.65
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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.