Finding the Fourth Proportional to 268,272,812.20, 402,409,218.30 and 190,338,629.80
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Solution
The fourth proportional to 268,272,812.20, 402,409,218.30 and 190,338,629.80 is: 285,507,944.70
Step by Step Solution
- Step 1: Write the proportion equation
268,272,812.20 : 402,409,218.30 = 190,338,629.80 : x - Step 2: Convert to fraction form
268,272,812.20/402,409,218.30 = 190,338,629.80/x - Step 3: Cross multiply
268,272,812.20x = 402,409,218.30 × 190,338,629.80 - Step 4: Simplify right side
268,272,812.20x = 76,594,019,230,111,088 - Step 5: Solve for x
x = 76,594,019,230,111,088/268,272,812.20 - Step 6: Final answer
x = 285,507,944.70
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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.