Finding the Fourth Proportional to 216,684,042.13, 324,957,787.74 and 71,083,675.12
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Solution
The fourth proportional to 216,684,042.13, 324,957,787.74 and 71,083,675.12 is: 106,603,114.77
Step by Step Solution
- Step 1: Write the proportion equation
216,684,042.13 : 324,957,787.74 = 71,083,675.12 : x - Step 2: Convert to fraction form
216,684,042.13/324,957,787.74 = 71,083,675.12/x - Step 3: Cross multiply
216,684,042.13x = 324,957,787.74 × 71,083,675.12 - Step 4: Simplify right side
216,684,042.13x = 23,099,193,811,424,080 - Step 5: Solve for x
x = 23,099,193,811,424,080/216,684,042.13 - Step 6: Final answer
x = 106,603,114.77
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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.