Finding the Fourth Proportional to 196,579,378.60, 295,294,220.70 and 139,183,750.60
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Solution
The fourth proportional to 196,579,378.60, 295,294,220.70 and 139,183,750.60 is: 209,076,646.09
Step by Step Solution
- Step 1: Write the proportion equation
196,579,378.60 : 295,294,220.70 = 139,183,750.60 : x - Step 2: Convert to fraction form
196,579,378.60/295,294,220.70 = 139,183,750.60/x - Step 3: Cross multiply
196,579,378.60x = 295,294,220.70 × 139,183,750.60 - Step 4: Simplify right side
196,579,378.60x = 41,100,157,167,530,152 - Step 5: Solve for x
x = 41,100,157,167,530,152/196,579,378.60 - Step 6: Final answer
x = 209,076,646.09
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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.