Finding the Fourth Proportional to 121,361,317.24, 167,524,160.98 and 79,548,076.44
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Solution
The fourth proportional to 121,361,317.24, 167,524,160.98 and 79,548,076.44 is: 109,806,197.45
Step by Step Solution
- Step 1: Write the proportion equation
121,361,317.24 : 167,524,160.98 = 79,548,076.44 : x - Step 2: Convert to fraction form
121,361,317.24/167,524,160.98 = 79,548,076.44/x - Step 3: Cross multiply
121,361,317.24x = 167,524,160.98 × 79,548,076.44 - Step 4: Simplify right side
121,361,317.24x = 13,326,224,763,183,904 - Step 5: Solve for x
x = 13,326,224,763,183,904/121,361,317.24 - Step 6: Final answer
x = 109,806,197.45
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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.