Finding the Fourth Proportional to 10,201,008.30, 15,301,512.45 and 8,872,405.80
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Solution
The fourth proportional to 10,201,008.30, 15,301,512.45 and 8,872,405.80 is: 13,308,608.70
Step by Step Solution
- Step 1: Write the proportion equation
10,201,008.30 : 15,301,512.45 = 8,872,405.80 : x - Step 2: Convert to fraction form
10,201,008.30/15,301,512.45 = 8,872,405.80/x - Step 3: Cross multiply
10,201,008.30x = 15,301,512.45 × 8,872,405.80 - Step 4: Simplify right side
10,201,008.30x = 135,761,227,810,152.22 - Step 5: Solve for x
x = 135,761,227,810,152.22/10,201,008.30 - Step 6: Final answer
x = 13,308,608.70
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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.