Finding the Fourth Proportional to 7,461,106.20, 11,191,659.30 and 5,193,624.60
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Solution
The fourth proportional to 7,461,106.20, 11,191,659.30 and 5,193,624.60 is: 7,790,436.90
Step by Step Solution
- Step 1: Write the proportion equation
7,461,106.20 : 11,191,659.30 = 5,193,624.60 : x - Step 2: Convert to fraction form
7,461,106.20/11,191,659.30 = 5,193,624.60/x - Step 3: Cross multiply
7,461,106.20x = 11,191,659.30 × 5,193,624.60 - Step 4: Simplify right side
7,461,106.20x = 58,125,277,055,298.78 - Step 5: Solve for x
x = 58,125,277,055,298.78/7,461,106.20 - Step 6: Final answer
x = 7,790,436.90
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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.