Finding the Fourth Proportional to 2,660,981.10, 3,991,471.65 and 2,660,981.10
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Solution
The fourth proportional to 2,660,981.10, 3,991,471.65 and 2,660,981.10 is: 3,991,471.65
Step by Step Solution
- Step 1: Write the proportion equation
2,660,981.10 : 3,991,471.65 = 2,660,981.10 : x - Step 2: Convert to fraction form
2,660,981.10/3,991,471.65 = 2,660,981.10/x - Step 3: Cross multiply
2,660,981.10x = 3,991,471.65 × 2,660,981.10 - Step 4: Simplify right side
2,660,981.10x = 10,621,230,621,835.81 - Step 5: Solve for x
x = 10,621,230,621,835.81/2,660,981.10 - Step 6: Final answer
x = 3,991,471.65
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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.