Finding the Fourth Proportional to 10,290,430.80, 15,430,660.92 and 3,100,624.56
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Solution
The fourth proportional to 10,290,430.80, 15,430,660.92 and 3,100,624.56 is: 4,649,434.72
Step by Step Solution
- Step 1: Write the proportion equation
10,290,430.80 : 15,430,660.92 = 3,100,624.56 : x - Step 2: Convert to fraction form
10,290,430.80/15,430,660.92 = 3,100,624.56/x - Step 3: Cross multiply
10,290,430.80x = 15,430,660.92 × 3,100,624.56 - Step 4: Simplify right side
10,290,430.80x = 47,844,686,225,584.20 - Step 5: Solve for x
x = 47,844,686,225,584.20/10,290,430.80 - Step 6: Final answer
x = 4,649,434.72
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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.