Finding the Fourth Proportional to 21,660,587.30, 32,493,915.64 and 7,088,652.20
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Solution
The fourth proportional to 21,660,587.30, 32,493,915.64 and 7,088,652.20 is: 10,633,971.44
Step by Step Solution
- Step 1: Write the proportion equation
21,660,587.30 : 32,493,915.64 = 7,088,652.20 : x - Step 2: Convert to fraction form
21,660,587.30/32,493,915.64 = 7,088,652.20/x - Step 3: Cross multiply
21,660,587.30x = 32,493,915.64 × 7,088,652.20 - Step 4: Simplify right side
21,660,587.30x = 230,338,066,651,613.56 - Step 5: Solve for x
x = 230,338,066,651,613.56/21,660,587.30 - Step 6: Final answer
x = 10,633,971.44
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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.