Finding the Fourth Proportional to 121,122,083.25, 167,126,424.48 and 68,190,559.65
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Solution
The fourth proportional to 121,122,083.25, 167,126,424.48 and 68,190,559.65 is: 94,090,558.15
Step by Step Solution
- Step 1: Write the proportion equation
121,122,083.25 : 167,126,424.48 = 68,190,559.65 : x - Step 2: Convert to fraction form
121,122,083.25/167,126,424.48 = 68,190,559.65/x - Step 3: Cross multiply
121,122,083.25x = 167,126,424.48 × 68,190,559.65 - Step 4: Simplify right side
121,122,083.25x = 11,396,444,417,594,660 - Step 5: Solve for x
x = 11,396,444,417,594,660/121,122,083.25 - Step 6: Final answer
x = 94,090,558.15
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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.