Finding the Fourth Proportional to 199,389,697.80, 299,084,546.70 and 108,690,433.80
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Solution
The fourth proportional to 199,389,697.80, 299,084,546.70 and 108,690,433.80 is: 163,035,650.70
Step by Step Solution
- Step 1: Write the proportion equation
199,389,697.80 : 299,084,546.70 = 108,690,433.80 : x - Step 2: Convert to fraction form
199,389,697.80/299,084,546.70 = 108,690,433.80/x - Step 3: Cross multiply
199,389,697.80x = 299,084,546.70 × 108,690,433.80 - Step 4: Simplify right side
199,389,697.80x = 32,507,629,123,699,356 - Step 5: Solve for x
x = 32,507,629,123,699,356/199,389,697.80 - Step 6: Final answer
x = 163,035,650.70
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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.