Finding the Fourth Proportional to 8,230,445.91, 11,332,102.36 and 6,987,597.99
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Solution
The fourth proportional to 8,230,445.91, 11,332,102.36 and 6,987,597.99 is: 9,620,885.25
Step by Step Solution
- Step 1: Write the proportion equation
8,230,445.91 : 11,332,102.36 = 6,987,597.99 : x - Step 2: Convert to fraction form
8,230,445.91/11,332,102.36 = 6,987,597.99/x - Step 3: Cross multiply
8,230,445.91x = 11,332,102.36 × 6,987,597.99 - Step 4: Simplify right side
8,230,445.91x = 79,184,175,670,441.58 - Step 5: Solve for x
x = 79,184,175,670,441.58/8,230,445.91 - Step 6: Final answer
x = 9,620,885.25
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.