Finding the Fourth Proportional to 8,438,757.85, 11,645,485.05 and 4,571,278.12
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Solution
The fourth proportional to 8,438,757.85, 11,645,485.05 and 4,571,278.12 is: 6,308,363.38
Step by Step Solution
- Step 1: Write the proportion equation
8,438,757.85 : 11,645,485.05 = 4,571,278.12 : x - Step 2: Convert to fraction form
8,438,757.85/11,645,485.05 = 4,571,278.12/x - Step 3: Cross multiply
8,438,757.85x = 11,645,485.05 × 4,571,278.12 - Step 4: Simplify right side
8,438,757.85x = 53,234,751,005,852.11 - Step 5: Solve for x
x = 53,234,751,005,852.11/8,438,757.85 - Step 6: Final answer
x = 6,308,363.38
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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.