Finding the Fourth Proportional to 68,915,729.70, 95,104,344.72 and 37,977,006.12
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Solution
The fourth proportional to 68,915,729.70, 95,104,344.72 and 37,977,006.12 is: 52,408,619.88
Step by Step Solution
- Step 1: Write the proportion equation
68,915,729.70 : 95,104,344.72 = 37,977,006.12 : x - Step 2: Convert to fraction form
68,915,729.70/95,104,344.72 = 37,977,006.12/x - Step 3: Cross multiply
68,915,729.70x = 95,104,344.72 × 37,977,006.12 - Step 4: Simplify right side
68,915,729.70x = 3,611,778,281,470,029.50 - Step 5: Solve for x
x = 3,611,778,281,470,029.50/68,915,729.70 - Step 6: Final answer
x = 52,408,619.88
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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.