Finding the Fourth Proportional to 250,140,202.63, 345,193,512.37 and 138,638,242.22
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Solution
The fourth proportional to 250,140,202.63, 345,193,512.37 and 138,638,242.22 is: 191,320,792.41
Step by Step Solution
- Step 1: Write the proportion equation
250,140,202.63 : 345,193,512.37 = 138,638,242.22 : x - Step 2: Convert to fraction form
250,140,202.63/345,193,512.37 = 138,638,242.22/x - Step 3: Cross multiply
250,140,202.63x = 345,193,512.37 × 138,638,242.22 - Step 4: Simplify right side
250,140,202.63x = 47,857,021,780,724,624 - Step 5: Solve for x
x = 47,857,021,780,724,624/250,140,202.63 - Step 6: Final answer
x = 191,320,792.41
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1.5x scale
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.