Finding the Fourth Proportional to 7,381,495.80, 11,072,243.70 and 5,562,786.60
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Solution
The fourth proportional to 7,381,495.80, 11,072,243.70 and 5,562,786.60 is: 8,344,179.90
Step by Step Solution
- Step 1: Write the proportion equation
7,381,495.80 : 11,072,243.70 = 5,562,786.60 : x - Step 2: Convert to fraction form
7,381,495.80/11,072,243.70 = 5,562,786.60/x - Step 3: Cross multiply
7,381,495.80x = 11,072,243.70 × 5,562,786.60 - Step 4: Simplify right side
7,381,495.80x = 61,592,528,886,294.41 - Step 5: Solve for x
x = 61,592,528,886,294.41/7,381,495.80 - Step 6: Final answer
x = 8,344,179.90
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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.