Finding the Fourth Proportional to 121,343,780.09, 167,455,175.63 and 65,589,085.53
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Solution
The fourth proportional to 121,343,780.09, 167,455,175.63 and 65,589,085.53 is: 90,513,348.35
Step by Step Solution
- Step 1: Write the proportion equation
121,343,780.09 : 167,455,175.63 = 65,589,085.53 : x - Step 2: Convert to fraction form
121,343,780.09/167,455,175.63 = 65,589,085.53/x - Step 3: Cross multiply
121,343,780.09x = 167,455,175.63 × 65,589,085.53 - Step 4: Simplify right side
121,343,780.09x = 10,983,231,836,509,296 - Step 5: Solve for x
x = 10,983,231,836,509,296/121,343,780.09 - Step 6: Final answer
x = 90,513,348.35
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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.