Finding the Fourth Proportional to 39,135,230.76, 54,006,787.98 and 21,731,522.52
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Solution
The fourth proportional to 39,135,230.76, 54,006,787.98 and 21,731,522.52 is: 29,989,595.22
Step by Step Solution
- Step 1: Write the proportion equation
39,135,230.76 : 54,006,787.98 = 21,731,522.52 : x - Step 2: Convert to fraction form
39,135,230.76/54,006,787.98 = 21,731,522.52/x - Step 3: Cross multiply
39,135,230.76x = 54,006,787.98 × 21,731,522.52 - Step 4: Simplify right side
39,135,230.76x = 1,173,649,729,220,235.25 - Step 5: Solve for x
x = 1,173,649,729,220,235.25/39,135,230.76 - Step 6: Final answer
x = 29,989,595.22
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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.