Finding the Fourth Proportional to 450,650,739.78, 622,201,704.84 and 281,362,990.98
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Solution
The fourth proportional to 450,650,739.78, 622,201,704.84 and 281,362,990.98 is: 388,470,532.08
Step by Step Solution
- Step 1: Write the proportion equation
450,650,739.78 : 622,201,704.84 = 281,362,990.98 : x - Step 2: Convert to fraction form
450,650,739.78/622,201,704.84 = 281,362,990.98/x - Step 3: Cross multiply
450,650,739.78x = 622,201,704.84 × 281,362,990.98 - Step 4: Simplify right side
450,650,739.78x = 175,064,532,666,637,568 - Step 5: Solve for x
x = 175,064,532,666,637,568/450,650,739.78 - Step 6: Final answer
x = 388,470,532.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.