Finding the Fourth Proportional to 7,360,270.20, 11,040,405.30 and 7,029,595.80
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Solution
The fourth proportional to 7,360,270.20, 11,040,405.30 and 7,029,595.80 is: 10,544,393.70
Step by Step Solution
- Step 1: Write the proportion equation
7,360,270.20 : 11,040,405.30 = 7,029,595.80 : x - Step 2: Convert to fraction form
7,360,270.20/11,040,405.30 = 7,029,595.80/x - Step 3: Cross multiply
7,360,270.20x = 11,040,405.30 × 7,029,595.80 - Step 4: Simplify right side
7,360,270.20x = 77,609,586,727,177.75 - Step 5: Solve for x
x = 77,609,586,727,177.75/7,360,270.20 - Step 6: Final answer
x = 10,544,393.70
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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.