Finding the Fourth Proportional to 7,261,207.80, 10,891,811.70 and 7,261,207.80
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Solution
The fourth proportional to 7,261,207.80, 10,891,811.70 and 7,261,207.80 is: 10,891,811.70
Step by Step Solution
- Step 1: Write the proportion equation
7,261,207.80 : 10,891,811.70 = 7,261,207.80 : x - Step 2: Convert to fraction form
7,261,207.80/10,891,811.70 = 7,261,207.80/x - Step 3: Cross multiply
7,261,207.80x = 10,891,811.70 × 7,261,207.80 - Step 4: Simplify right side
7,261,207.80x = 79,087,708,072,171.25 - Step 5: Solve for x
x = 79,087,708,072,171.25/7,261,207.80 - Step 6: Final answer
x = 10,891,811.70
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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.