Finding the Fourth Proportional to 354,261,637.80, 531,392,456.70 and 201,206,629.80
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Solution
The fourth proportional to 354,261,637.80, 531,392,456.70 and 201,206,629.80 is: 301,809,944.70
Step by Step Solution
- Step 1: Write the proportion equation
354,261,637.80 : 531,392,456.70 = 201,206,629.80 : x - Step 2: Convert to fraction form
354,261,637.80/531,392,456.70 = 201,206,629.80/x - Step 3: Cross multiply
354,261,637.80x = 531,392,456.70 × 201,206,629.80 - Step 4: Simplify right side
354,261,637.80x = 106,919,685,313,749,440 - Step 5: Solve for x
x = 106,919,685,313,749,440/354,261,637.80 - Step 6: Final answer
x = 301,809,944.70
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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.