Finding the Fourth Proportional to 644,719,749.21, 889,716,266.90 and 366,276,551.67
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Solution
The fourth proportional to 644,719,749.21, 889,716,266.90 and 366,276,551.67 is: 505,463,353.03
Step by Step Solution
- Step 1: Write the proportion equation
644,719,749.21 : 889,716,266.90 = 366,276,551.67 : x - Step 2: Convert to fraction form
644,719,749.21/889,716,266.90 = 366,276,551.67/x - Step 3: Cross multiply
644,719,749.21x = 889,716,266.90 × 366,276,551.67 - Step 4: Simplify right side
644,719,749.21x = 325,882,206,203,006,016 - Step 5: Solve for x
x = 325,882,206,203,006,016/644,719,749.21 - Step 6: Final answer
x = 505,463,353.03
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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.