Finding the Fourth Proportional to 5,451,278.90, 8,176,918.35 and 3,320,266.10
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Solution
The fourth proportional to 5,451,278.90, 8,176,918.35 and 3,320,266.10 is: 4,980,399.15
Step by Step Solution
- Step 1: Write the proportion equation
5,451,278.90 : 8,176,918.35 = 3,320,266.10 : x - Step 2: Convert to fraction form
5,451,278.90/8,176,918.35 = 3,320,266.10/x - Step 3: Cross multiply
5,451,278.90x = 8,176,918.35 × 3,320,266.10 - Step 4: Simplify right side
5,451,278.90x = 27,149,544,799,972.93 - Step 5: Solve for x
x = 27,149,544,799,972.93/5,451,278.90 - Step 6: Final answer
x = 4,980,399.15
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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.