Finding the Fourth Proportional to 7,382,658.20, 11,073,987.30 and 6,372,920.30
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Solution
The fourth proportional to 7,382,658.20, 11,073,987.30 and 6,372,920.30 is: 9,559,380.45
Step by Step Solution
- Step 1: Write the proportion equation
7,382,658.20 : 11,073,987.30 = 6,372,920.30 : x - Step 2: Convert to fraction form
7,382,658.20/11,073,987.30 = 6,372,920.30/x - Step 3: Cross multiply
7,382,658.20x = 11,073,987.30 × 6,372,920.30 - Step 4: Simplify right side
7,382,658.20x = 70,573,638,466,112.19 - Step 5: Solve for x
x = 70,573,638,466,112.19/7,382,658.20 - Step 6: Final answer
x = 9,559,380.45
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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.