Finding the Fourth Proportional to 13,207,996.04, 18,219,313.24 and 8,305,456.44
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Solution
The fourth proportional to 13,207,996.04, 18,219,313.24 and 8,305,456.44 is: 11,456,674.58
Step by Step Solution
- Step 1: Write the proportion equation
13,207,996.04 : 18,219,313.24 = 8,305,456.44 : x - Step 2: Convert to fraction form
13,207,996.04/18,219,313.24 = 8,305,456.44/x - Step 3: Cross multiply
13,207,996.04x = 18,219,313.24 × 8,305,456.44 - Step 4: Simplify right side
13,207,996.04x = 151,319,712,481,535.25 - Step 5: Solve for x
x = 151,319,712,481,535.25/13,207,996.04 - Step 6: Final answer
x = 11,456,674.58
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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.