Finding the Fourth Proportional to 7,452,001.20, 11,178,001.80 and 6,192,289.20
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Solution
The fourth proportional to 7,452,001.20, 11,178,001.80 and 6,192,289.20 is: 9,288,433.80
Step by Step Solution
- Step 1: Write the proportion equation
7,452,001.20 : 11,178,001.80 = 6,192,289.20 : x - Step 2: Convert to fraction form
7,452,001.20/11,178,001.80 = 6,192,289.20/x - Step 3: Cross multiply
7,452,001.20x = 11,178,001.80 × 6,192,289.20 - Step 4: Simplify right side
7,452,001.20x = 69,217,419,823,720.57 - Step 5: Solve for x
x = 69,217,419,823,720.57/7,452,001.20 - Step 6: Final answer
x = 9,288,433.80
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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.