Finding the Fourth Proportional to 8,256,317.63, 12,379,570.22 and 3,139,122.18
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Solution
The fourth proportional to 8,256,317.63, 12,379,570.22 and 3,139,122.18 is: 4,706,817.88
Step by Step Solution
- Step 1: Write the proportion equation
8,256,317.63 : 12,379,570.22 = 3,139,122.18 : x - Step 2: Convert to fraction form
8,256,317.63/12,379,570.22 = 3,139,122.18/x - Step 3: Cross multiply
8,256,317.63x = 12,379,570.22 × 3,139,122.18 - Step 4: Simplify right side
8,256,317.63x = 38,860,983,440,773.87 - Step 5: Solve for x
x = 38,860,983,440,773.87/8,256,317.63 - Step 6: Final answer
x = 4,706,817.88
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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.