Finding the Fourth Proportional to 354,261,638.80, 531,392,458.20 and 201,206,630.80
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Solution
The fourth proportional to 354,261,638.80, 531,392,458.20 and 201,206,630.80 is: 301,809,946.20
Step by Step Solution
- Step 1: Write the proportion equation
354,261,638.80 : 531,392,458.20 = 201,206,630.80 : x - Step 2: Convert to fraction form
354,261,638.80/531,392,458.20 = 201,206,630.80/x - Step 3: Cross multiply
354,261,638.80x = 531,392,458.20 × 201,206,630.80 - Step 4: Simplify right side
354,261,638.80x = 106,919,686,146,951,840 - Step 5: Solve for x
x = 106,919,686,146,951,840/354,261,638.80 - Step 6: Final answer
x = 301,809,946.20
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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.