Finding the Fourth Proportional to 13,037,137.08, 17,991,113.22 and 7,235,968.92
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Solution
The fourth proportional to 13,037,137.08, 17,991,113.22 and 7,235,968.92 is: 9,985,561.65
Step by Step Solution
- Step 1: Write the proportion equation
13,037,137.08 : 17,991,113.22 = 7,235,968.92 : x - Step 2: Convert to fraction form
13,037,137.08/17,991,113.22 = 7,235,968.92/x - Step 3: Cross multiply
13,037,137.08x = 17,991,113.22 × 7,235,968.92 - Step 4: Simplify right side
13,037,137.08x = 130,183,136,096,121.11 - Step 5: Solve for x
x = 130,183,136,096,121.11/13,037,137.08 - Step 6: Final answer
x = 9,985,561.65
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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.