Finding the Fourth Proportional to 7,415,305.80, 11,122,958.70 and 2,628,400.20
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Solution
The fourth proportional to 7,415,305.80, 11,122,958.70 and 2,628,400.20 is: 3,942,600.30
Step by Step Solution
- Step 1: Write the proportion equation
7,415,305.80 : 11,122,958.70 = 2,628,400.20 : x - Step 2: Convert to fraction form
7,415,305.80/11,122,958.70 = 2,628,400.20/x - Step 3: Cross multiply
7,415,305.80x = 11,122,958.70 × 2,628,400.20 - Step 4: Simplify right side
7,415,305.80x = 29,235,586,871,671.74 - Step 5: Solve for x
x = 29,235,586,871,671.74/7,415,305.80 - Step 6: Final answer
x = 3,942,600.30
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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.