Finding the Fourth Proportional to 321,012,745.11, 480,701,689.36 and 211,505,922.23
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Solution
The fourth proportional to 321,012,745.11, 480,701,689.36 and 211,505,922.23 is: 316,720,303.70
Step by Step Solution
- Step 1: Write the proportion equation
321,012,745.11 : 480,701,689.36 = 211,505,922.23 : x - Step 2: Convert to fraction form
321,012,745.11/480,701,689.36 = 211,505,922.23/x - Step 3: Cross multiply
321,012,745.11x = 480,701,689.36 × 211,505,922.23 - Step 4: Simplify right side
321,012,745.11x = 101,671,254,122,673,504 - Step 5: Solve for x
x = 101,671,254,122,673,504/321,012,745.11 - Step 6: Final answer
x = 316,720,303.70
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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.