Finding the Fourth Proportional to 165,888,853.80, 248,833,280.70 and 80,954,197.80
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Solution
The fourth proportional to 165,888,853.80, 248,833,280.70 and 80,954,197.80 is: 121,431,296.70
Step by Step Solution
- Step 1: Write the proportion equation
165,888,853.80 : 248,833,280.70 = 80,954,197.80 : x - Step 2: Convert to fraction form
165,888,853.80/248,833,280.70 = 80,954,197.80/x - Step 3: Cross multiply
165,888,853.80x = 248,833,280.70 × 80,954,197.80 - Step 4: Simplify right side
165,888,853.80x = 20,144,098,625,010,720 - Step 5: Solve for x
x = 20,144,098,625,010,720/165,888,853.80 - Step 6: Final answer
x = 121,431,296.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.