Finding the Fourth Proportional to 12,538,503.99, 17,305,026.84 and 7,646,563.83
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Solution
The fourth proportional to 12,538,503.99, 17,305,026.84 and 7,646,563.83 is: 10,553,411.51
Step by Step Solution
- Step 1: Write the proportion equation
12,538,503.99 : 17,305,026.84 = 7,646,563.83 : x - Step 2: Convert to fraction form
12,538,503.99/17,305,026.84 = 7,646,563.83/x - Step 3: Cross multiply
12,538,503.99x = 17,305,026.84 × 7,646,563.83 - Step 4: Simplify right side
12,538,503.99x = 132,323,992,311,923.20 - Step 5: Solve for x
x = 132,323,992,311,923.20/12,538,503.99 - Step 6: Final answer
x = 10,553,411.51
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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.