Finding the Fourth Proportional to 8,871,201.09, 12,239,250.53 and 7,236,783.09
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Solution
The fourth proportional to 8,871,201.09, 12,239,250.53 and 7,236,783.09 is: 9,984,307.69
Step by Step Solution
- Step 1: Write the proportion equation
8,871,201.09 : 12,239,250.53 = 7,236,783.09 : x - Step 2: Convert to fraction form
8,871,201.09/12,239,250.53 = 7,236,783.09/x - Step 3: Cross multiply
8,871,201.09x = 12,239,250.53 × 7,236,783.09 - Step 4: Simplify right side
8,871,201.09x = 88,572,801,233,593.62 - Step 5: Solve for x
x = 88,572,801,233,593.62/8,871,201.09 - Step 6: Final answer
x = 9,984,307.69
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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.