Finding the Fourth Proportional to 7,381,247.80, 11,071,871.70 and 7,381,247.80
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Solution
The fourth proportional to 7,381,247.80, 11,071,871.70 and 7,381,247.80 is: 11,071,871.70
Step by Step Solution
- Step 1: Write the proportion equation
7,381,247.80 : 11,071,871.70 = 7,381,247.80 : x - Step 2: Convert to fraction form
7,381,247.80/11,071,871.70 = 7,381,247.80/x - Step 3: Cross multiply
7,381,247.80x = 11,071,871.70 × 7,381,247.80 - Step 4: Simplify right side
7,381,247.80x = 81,724,228,627,507.25 - Step 5: Solve for x
x = 81,724,228,627,507.25/7,381,247.80 - Step 6: Final answer
x = 11,071,871.70
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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.