Finding the Fourth Proportional to 7,339,747.80, 11,009,621.70 and 5,450,179.80
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Solution
The fourth proportional to 7,339,747.80, 11,009,621.70 and 5,450,179.80 is: 8,175,269.70
Step by Step Solution
- Step 1: Write the proportion equation
7,339,747.80 : 11,009,621.70 = 5,450,179.80 : x - Step 2: Convert to fraction form
7,339,747.80/11,009,621.70 = 5,450,179.80/x - Step 3: Cross multiply
7,339,747.80x = 11,009,621.70 × 5,450,179.80 - Step 4: Simplify right side
7,339,747.80x = 60,004,417,794,981.66 - Step 5: Solve for x
x = 60,004,417,794,981.66/7,339,747.80 - Step 6: Final answer
x = 8,175,269.70
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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.