Finding the Fourth Proportional to 10,345,124.10, 15,491,114.10 and 8,201,645.40
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Solution
The fourth proportional to 10,345,124.10, 15,491,114.10 and 8,201,645.40 is: 12,281,401.70
Step by Step Solution
- Step 1: Write the proportion equation
10,345,124.10 : 15,491,114.10 = 8,201,645.40 : x - Step 2: Convert to fraction form
10,345,124.10/15,491,114.10 = 8,201,645.40/x - Step 3: Cross multiply
10,345,124.10x = 15,491,114.10 × 8,201,645.40 - Step 4: Simplify right side
10,345,124.10x = 127,052,624,699,140.14 - Step 5: Solve for x
x = 127,052,624,699,140.14/10,345,124.10 - Step 6: Final answer
x = 12,281,401.70
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1.5x scale
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.