Finding the Fourth Proportional to 104,976,122.60, 157,464,183.90 and 66,680,877.80
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Solution
The fourth proportional to 104,976,122.60, 157,464,183.90 and 66,680,877.80 is: 100,021,316.70
Step by Step Solution
- Step 1: Write the proportion equation
104,976,122.60 : 157,464,183.90 = 66,680,877.80 : x - Step 2: Convert to fraction form
104,976,122.60/157,464,183.90 = 66,680,877.80/x - Step 3: Cross multiply
104,976,122.60x = 157,464,183.90 × 66,680,877.80 - Step 4: Simplify right side
104,976,122.60x = 10,499,850,004,512,628 - Step 5: Solve for x
x = 10,499,850,004,512,628/104,976,122.60 - Step 6: Final answer
x = 100,021,316.70
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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.