Finding the Fourth Proportional to 290,971,278.09, 436,584,770.24 and 152,764,771.05
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Solution
The fourth proportional to 290,971,278.09, 436,584,770.24 and 152,764,771.05 is: 229,214,281.58
Step by Step Solution
- Step 1: Write the proportion equation
290,971,278.09 : 436,584,770.24 = 152,764,771.05 : x - Step 2: Convert to fraction form
290,971,278.09/436,584,770.24 = 152,764,771.05/x - Step 3: Cross multiply
290,971,278.09x = 436,584,770.24 × 152,764,771.05 - Step 4: Simplify right side
290,971,278.09x = 66,694,772,468,866,640 - Step 5: Solve for x
x = 66,694,772,468,866,640/290,971,278.09 - Step 6: Final answer
x = 229,214,281.58
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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.