Finding the Fourth Proportional to 13,621,218.88, 18,797,408.22 and 7,509,866.08
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Solution
The fourth proportional to 13,621,218.88, 18,797,408.22 and 7,509,866.08 is: 10,363,684.75
Step by Step Solution
- Step 1: Write the proportion equation
13,621,218.88 : 18,797,408.22 = 7,509,866.08 : x - Step 2: Convert to fraction form
13,621,218.88/18,797,408.22 = 7,509,866.08/x - Step 3: Cross multiply
13,621,218.88x = 18,797,408.22 × 7,509,866.08 - Step 4: Simplify right side
13,621,218.88x = 141,166,018,383,291.16 - Step 5: Solve for x
x = 141,166,018,383,291.16/13,621,218.88 - Step 6: Final answer
x = 10,363,684.75
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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.