Finding the Fourth Proportional to 8,638,720.47, 12,960,212 and 2,573,428.62
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Solution
The fourth proportional to 8,638,720.47, 12,960,212 and 2,573,428.62 is: 3,860,777.83
Step by Step Solution
- Step 1: Write the proportion equation
8,638,720.47 : 12,960,212 = 2,573,428.62 : x - Step 2: Convert to fraction form
8,638,720.47/12,960,212 = 2,573,428.62/x - Step 3: Cross multiply
8,638,720.47x = 12,960,212 × 2,573,428.62 - Step 4: Simplify right side
8,638,720.47x = 33,352,180,482,067.44 - Step 5: Solve for x
x = 33,352,180,482,067.44/8,638,720.47 - Step 6: Final answer
x = 3,860,777.83
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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.